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flexibility

Flexibility Logo

A JavaScript polyfill for Flexbox

npmbowercigitter

Flexibility is a polyfill for the Flexible Box Layout, commonly known as Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the web without sacrificing the experience in older browsers.

Flexbox lays out, aligns, and distributes elements in a container, even when their size is unknown or dynamic. To better understand Flexbox, read Chris Coyier’s excellent Complete Guide to Flexbox.

To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the flexibility.js script and include it anywhere on your page.

<scriptsrc="flexibility.js"></script>

If you’re only targeting Internet Explorer 10 and lower, add a -js-display: flex declaration before any display: flex declarations in your CSS, or use PostCSS Flexibility to automate this during your build process.

.container {
-js-display: flex;
display: flex;
}

If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.

<divdata-style="display: flex;"></div>

When you’re ready to polyfill flexbox with JavaScript, use the flexibility method on the outermost element you would like to polyfill.

flexibility(document.documentElement);

API

The global flexibility method contains child functions for use within your own framework.

flexibility.read

Argument: Element

Return flexbox related styles from an element.

flexibility.readAll

Argument: Element

Return a list of flexbox details from a matching element or its descendants.

flexibility.write

Argument: Details

Writes flexbox details back to their respective elements.

flexibility.writeAll

Argument: Array

Writes a list of flexbox details back to their respective elements.

To learn more about Flexibility, read the support section.

If you experience an issue, read the contributing section before creating an issue.

About

A JavaScript polyfill for Flexbox

jonathantneal.github.io/flexibility/

Resources

Readme
MIT license

Contributing

Contributing
Activity

Stars

4.3k stars

Watchers

120 watching

Forks

458 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - jonathantneal/flexibility: A JavaScript polyfill for Flexbox · GitHub
Skip to content
BranchesTags
Repository files navigation
flexibility
Flexibility Logo
A JavaScript polyfill for Flexbox
npmbowercigitter
Flexibility is a polyfill for the Flexible Box Layout, commonly known as
Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the
web without sacrificing the experience in older browsers.
Flexbox lays out, aligns, and distributes elements in a container, even
when their size is unknown or dynamic. To better understand Flexbox, read
Chris Coyier’s excellent Complete Guide to Flexbox.
To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the
flexibility.js script and include it anywhere on your page.
<scriptsrc="flexibility.js"></script>
If you’re only targeting Internet Explorer 10 and lower, add a
-js-display: flex declaration before any display: flex declarations in your
CSS, or use PostCSS Flexibility to automate this during your build process.
.container {
-js-display: flex;
display: flex;
}
If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.
<divdata-style="display: flex;"></div>
When you’re ready to polyfill flexbox with JavaScript, use the flexibility
method on the outermost element you would like to polyfill.
flexibility(document.documentElement);
API
The global flexibility method contains child functions for use within your
own framework.
flexibility.read
Argument: Element
Return flexbox related styles from an element.
flexibility.readAll
Argument: Element
Return a list of flexbox details from a matching element or its descendants.
flexibility.write
Argument: Details
Writes flexbox details back to their respective elements.
flexibility.writeAll
Argument: Array
Writes a list of flexbox details back to their respective elements.
To learn more about Flexibility, read the support section.
If you experience an issue, read the contributing section before creating an
issue.
About
A JavaScript polyfill for Flexbox
jonathantneal.github.io/flexibility/
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
4.3k stars
Watchers
120 watching
Forks
458 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - jonathantneal/flexibility: A JavaScript polyfill for Flexbox · GitHub
Skip to content
BranchesTags
Repository files navigation
flexibility
Flexibility Logo
A JavaScript polyfill for Flexbox
npmbowercigitter
Flexibility is a polyfill for the Flexible Box Layout, commonly known as
Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the
web without sacrificing the experience in older browsers.
Flexbox lays out, aligns, and distributes elements in a container, even
when their size is unknown or dynamic. To better understand Flexbox, read
Chris Coyier’s excellent Complete Guide to Flexbox.
To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the
flexibility.js script and include it anywhere on your page.
<scriptsrc="flexibility.js"></script>
If you’re only targeting Internet Explorer 10 and lower, add a
-js-display: flex declaration before any display: flex declarations in your
CSS, or use PostCSS Flexibility to automate this during your build process.
.container {
-js-display: flex;
display: flex;
}
If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.
<divdata-style="display: flex;"></div>
When you’re ready to polyfill flexbox with JavaScript, use the flexibility
method on the outermost element you would like to polyfill.
flexibility(document.documentElement);
API
The global flexibility method contains child functions for use within your
own framework.
flexibility.read
Argument: Element
Return flexbox related styles from an element.
flexibility.readAll
Argument: Element
Return a list of flexbox details from a matching element or its descendants.
flexibility.write
Argument: Details
Writes flexbox details back to their respective elements.
flexibility.writeAll
Argument: Array
Writes a list of flexbox details back to their respective elements.
To learn more about Flexibility, read the support section.
If you experience an issue, read the contributing section before creating an
issue.
About
A JavaScript polyfill for Flexbox
jonathantneal.github.io/flexibility/
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
4.3k stars
Watchers
120 watching
Forks
458 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - jonathantneal/flexibility: A JavaScript polyfill for Flexbox · GitHub
Skip to content
BranchesTags
Repository files navigation
flexibility
Flexibility Logo
A JavaScript polyfill for Flexbox
npmbowercigitter
Flexibility is a polyfill for the Flexible Box Layout, commonly known as
Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the
web without sacrificing the experience in older browsers.
Flexbox lays out, aligns, and distributes elements in a container, even
when their size is unknown or dynamic. To better understand Flexbox, read
Chris Coyier’s excellent Complete Guide to Flexbox.
To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the
flexibility.js script and include it anywhere on your page.
<scriptsrc="flexibility.js"></script>
If you’re only targeting Internet Explorer 10 and lower, add a
-js-display: flex declaration before any display: flex declarations in your
CSS, or use PostCSS Flexibility to automate this during your build process.
.container {
-js-display: flex;
display: flex;
}
If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.
<divdata-style="display: flex;"></div>
When you’re ready to polyfill flexbox with JavaScript, use the flexibility
method on the outermost element you would like to polyfill.
flexibility(document.documentElement);
API
The global flexibility method contains child functions for use within your
own framework.
flexibility.read
Argument: Element
Return flexbox related styles from an element.
flexibility.readAll
Argument: Element
Return a list of flexbox details from a matching element or its descendants.
flexibility.write
Argument: Details
Writes flexbox details back to their respective elements.
flexibility.writeAll
Argument: Array
Writes a list of flexbox details back to their respective elements.
To learn more about Flexibility, read the support section.
If you experience an issue, read the contributing section before creating an
issue.
About
A JavaScript polyfill for Flexbox
jonathantneal.github.io/flexibility/
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
4.3k stars
Watchers
120 watching
Forks
458 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - jonathantneal/flexibility: A JavaScript polyfill for Flexbox · GitHub
Skip to content
BranchesTags
Repository files navigation
flexibility
Flexibility Logo
A JavaScript polyfill for Flexbox
npmbowercigitter
Flexibility is a polyfill for the Flexible Box Layout, commonly known as
Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the
web without sacrificing the experience in older browsers.
Flexbox lays out, aligns, and distributes elements in a container, even
when their size is unknown or dynamic. To better understand Flexbox, read
Chris Coyier’s excellent Complete Guide to Flexbox.
To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the
flexibility.js script and include it anywhere on your page.
<scriptsrc="flexibility.js"></script>
If you’re only targeting Internet Explorer 10 and lower, add a
-js-display: flex declaration before any display: flex declarations in your
CSS, or use PostCSS Flexibility to automate this during your build process.
.container {
-js-display: flex;
display: flex;
}
If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.
<divdata-style="display: flex;"></div>
When you’re ready to polyfill flexbox with JavaScript, use the flexibility
method on the outermost element you would like to polyfill.
flexibility(document.documentElement);
API
The global flexibility method contains child functions for use within your
own framework.
flexibility.read
Argument: Element
Return flexbox related styles from an element.
flexibility.readAll
Argument: Element
Return a list of flexbox details from a matching element or its descendants.
flexibility.write
Argument: Details
Writes flexbox details back to their respective elements.
flexibility.writeAll
Argument: Array
Writes a list of flexbox details back to their respective elements.
To learn more about Flexibility, read the support section.
If you experience an issue, read the contributing section before creating an
issue.
About
A JavaScript polyfill for Flexbox
jonathantneal.github.io/flexibility/
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
4.3k stars
Watchers
120 watching
Forks
458 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - jonathantneal/flexibility: A JavaScript polyfill for Flexbox · GitHub
Skip to content
BranchesTags
Repository files navigation
flexibility
Flexibility Logo
A JavaScript polyfill for Flexbox
npmbowercigitter
Flexibility is a polyfill for the Flexible Box Layout, commonly known as
Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the
web without sacrificing the experience in older browsers.
Flexbox lays out, aligns, and distributes elements in a container, even
when their size is unknown or dynamic. To better understand Flexbox, read
Chris Coyier’s excellent Complete Guide to Flexbox.
To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the
flexibility.js script and include it anywhere on your page.
<scriptsrc="flexibility.js"></script>
If you’re only targeting Internet Explorer 10 and lower, add a
-js-display: flex declaration before any display: flex declarations in your
CSS, or use PostCSS Flexibility to automate this during your build process.
.container {
-js-display: flex;
display: flex;
}
If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.
<divdata-style="display: flex;"></div>
When you’re ready to polyfill flexbox with JavaScript, use the flexibility
method on the outermost element you would like to polyfill.
flexibility(document.documentElement);
API
The global flexibility method contains child functions for use within your
own framework.
flexibility.read
Argument: Element
Return flexbox related styles from an element.
flexibility.readAll
Argument: Element
Return a list of flexbox details from a matching element or its descendants.
flexibility.write
Argument: Details
Writes flexbox details back to their respective elements.
flexibility.writeAll
Argument: Array
Writes a list of flexbox details back to their respective elements.
To learn more about Flexibility, read the support section.
If you experience an issue, read the contributing section before creating an
issue.
About
A JavaScript polyfill for Flexbox
jonathantneal.github.io/flexibility/
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
4.3k stars
Watchers
120 watching
Forks
458 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - jonathantneal/flexibility: A JavaScript polyfill for Flexbox · GitHub
Skip to content
BranchesTags
Repository files navigation
flexibility
Flexibility Logo
A JavaScript polyfill for Flexbox
npmbowercigitter
Flexibility is a polyfill for the Flexible Box Layout, commonly known as
Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the
web without sacrificing the experience in older browsers.
Flexbox lays out, aligns, and distributes elements in a container, even
when their size is unknown or dynamic. To better understand Flexbox, read
Chris Coyier’s excellent Complete Guide to Flexbox.
To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the
flexibility.js script and include it anywhere on your page.
<scriptsrc="flexibility.js"></script>
If you’re only targeting Internet Explorer 10 and lower, add a
-js-display: flex declaration before any display: flex declarations in your
CSS, or use PostCSS Flexibility to automate this during your build process.
.container {
-js-display: flex;
display: flex;
}
If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.
<divdata-style="display: flex;"></div>
When you’re ready to polyfill flexbox with JavaScript, use the flexibility
method on the outermost element you would like to polyfill.
flexibility(document.documentElement);
API
The global flexibility method contains child functions for use within your
own framework.
flexibility.read
Argument: Element
Return flexbox related styles from an element.
flexibility.readAll
Argument: Element
Return a list of flexbox details from a matching element or its descendants.
flexibility.write
Argument: Details
Writes flexbox details back to their respective elements.
flexibility.writeAll
Argument: Array
Writes a list of flexbox details back to their respective elements.
To learn more about Flexibility, read the support section.
If you experience an issue, read the contributing section before creating an
issue.
About
A JavaScript polyfill for Flexbox
jonathantneal.github.io/flexibility/
Resources
Readme
MIT license
Contributing
Contributing
Activity
Stars
4.3k stars
Watchers
120 watching
Forks
458 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - jonathantneal/flexibility: A JavaScript polyfill for Flexbox · GitHub
Skip to content
BranchesTags
Repository files navigation
flexibility
Flexibility Logo
A JavaScript polyfill for Flexbox
npmbowercigitter
Flexibility is a polyfill for the Flexible Box Layout, commonly known as
Flexbox. With Flexibility, you get to design beautiful, flexible layouts on the
web without sacrificing the experience in older browsers.
Flexbox lays out, aligns, and distributes elements in a container, even
when their size is unknown or dynamic. To better understand Flexbox, read
Chris Coyier’s excellent Complete Guide to Flexbox.
To start using Flexbox in Internet Explorer 8 & 9 or any older browser, download the
flexibility.js script and include it anywhere on your page.
<scriptsrc="flexibility.js"></script>
If you’re only targeting Internet Explorer 10 and lower, add a
-js-display: flex declaration before any display: flex declarations in your
CSS, or use PostCSS Flexibility to automate this during your build process.
.container {
-js-display: flex;
display: flex;
}
If you’re targeting other browsers, use the data-style attribute to alert these browsers to your changes.
<divdata-style="display: flex;"></div>
When you’re ready to polyfill flexbox with JavaScript, use the flexibility
method on the outermost element you would like to polyfill.
flexibility(document.documentElement);
API
The global flexibility method contains child functions for use within your
own framework.
flexibility.read
Argument: Element
Return flexbox related styles from an element.
flexibility.readAll
Argument: Element
Return a list of flexbox details from a matching element or its descendants.
flexibility.write
Argument: Details
Writes flexbox details back to their respective elements.
flexibility.writeAll
Argument: Array
Writes a list of flexbox details back to their respective elements.
To learn more about Flexibility, read the support section.
If you experience an issue, read the contributing section before creating an
issue.
About
A JavaScript polyfill for Flexbox
jonathantneal.github.io/flexibility/
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