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Observe the HTML element

Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure

Right click on any element to see the border, and continue clicking to see the parent element of the last marked element. The elements are marked with a border, and a random color.

Download and see the project for more details

About

Mark the element's edge and mark the element parent's edge, to have an idea of the html structure

edismr.github.io/targetParentObserve/

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html-developmenthtml-viewshtml5

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, '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 - EdisMR/targetParentObserve: Mark the element's edge and mark the element parent's edge, to have an idea of the html structure · GitHub
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parallelism
LICENSE
LICENSE
README.md
README.md
index.html
index.html
targetParentObserveElement.js
targetParentObserveElement.js
Repository files navigation
Observe the HTML element
Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure
Right click on any element to see the border, and continue clicking to see the parent element of the last marked element.
The elements are marked with a border, and a random color.
Download and see the project for more details
About
Mark the element's edge and mark the element parent's edge, to have an idea of the html structure
edismr.github.io/targetParentObserve/
Topics
html-developmenthtml-viewshtml5
Resources
Readme
Apache-2.0 license
Activity
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1 watching
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, '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 - EdisMR/targetParentObserve: Mark the element's edge and mark the element parent's edge, to have an idea of the html structure · GitHub
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LICENSE
LICENSE
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README.md
index.html
index.html
targetParentObserveElement.js
targetParentObserveElement.js
Repository files navigation
Observe the HTML element
Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure
Right click on any element to see the border, and continue clicking to see the parent element of the last marked element.
The elements are marked with a border, and a random color.
Download and see the project for more details
About
Mark the element's edge and mark the element parent's edge, to have an idea of the html structure
edismr.github.io/targetParentObserve/
Topics
html-developmenthtml-viewshtml5
Resources
Readme
Apache-2.0 license
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, '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 - EdisMR/targetParentObserve: Mark the element's edge and mark the element parent's edge, to have an idea of the html structure · GitHub
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12 Commits
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NameName
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css
css
parallelism
parallelism
LICENSE
LICENSE
README.md
README.md
index.html
index.html
targetParentObserveElement.js
targetParentObserveElement.js
Repository files navigation
Observe the HTML element
Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure
Right click on any element to see the border, and continue clicking to see the parent element of the last marked element.
The elements are marked with a border, and a random color.
Download and see the project for more details
About
Mark the element's edge and mark the element parent's edge, to have an idea of the html structure
edismr.github.io/targetParentObserve/
Topics
html-developmenthtml-viewshtml5
Resources
Readme
Apache-2.0 license
Activity
Stars
0 stars
Watchers
1 watching
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0 forks
Report repository
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, '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 - EdisMR/targetParentObserve: Mark the element's edge and mark the element parent's edge, to have an idea of the html structure · GitHub
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css
css
parallelism
parallelism
LICENSE
LICENSE
README.md
README.md
index.html
index.html
targetParentObserveElement.js
targetParentObserveElement.js
Repository files navigation
Observe the HTML element
Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure
Right click on any element to see the border, and continue clicking to see the parent element of the last marked element.
The elements are marked with a border, and a random color.
Download and see the project for more details
About
Mark the element's edge and mark the element parent's edge, to have an idea of the html structure
edismr.github.io/targetParentObserve/
Topics
html-developmenthtml-viewshtml5
Resources
Readme
Apache-2.0 license
Activity
Stars
0 stars
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1 watching
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0 forks
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, '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 - EdisMR/targetParentObserve: Mark the element's edge and mark the element parent's edge, to have an idea of the html structure · GitHub
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parallelism
LICENSE
LICENSE
README.md
README.md
index.html
index.html
targetParentObserveElement.js
targetParentObserveElement.js
Repository files navigation
Observe the HTML element
Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure
Right click on any element to see the border, and continue clicking to see the parent element of the last marked element.
The elements are marked with a border, and a random color.
Download and see the project for more details
About
Mark the element's edge and mark the element parent's edge, to have an idea of the html structure
edismr.github.io/targetParentObserve/
Topics
html-developmenthtml-viewshtml5
Resources
Readme
Apache-2.0 license
Activity
Stars
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1 watching
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0 forks
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, '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 - EdisMR/targetParentObserve: Mark the element's edge and mark the element parent's edge, to have an idea of the html structure · GitHub
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NameName
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css
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parallelism
parallelism
LICENSE
LICENSE
README.md
README.md
index.html
index.html
targetParentObserveElement.js
targetParentObserveElement.js
Repository files navigation
Observe the HTML element
Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure
Right click on any element to see the border, and continue clicking to see the parent element of the last marked element.
The elements are marked with a border, and a random color.
Download and see the project for more details
About
Mark the element's edge and mark the element parent's edge, to have an idea of the html structure
edismr.github.io/targetParentObserve/
Topics
html-developmenthtml-viewshtml5
Resources
Readme
Apache-2.0 license
Activity
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1 watching
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0 forks
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, '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 - EdisMR/targetParentObserve: Mark the element's edge and mark the element parent's edge, to have an idea of the html structure · GitHub
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Latest commit
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12 Commits
Folders and files
NameName
Last commit message
Last commit date
css
css
parallelism
parallelism
LICENSE
LICENSE
README.md
README.md
index.html
index.html
targetParentObserveElement.js
targetParentObserveElement.js
Repository files navigation
Observe the HTML element
Mark the edge of an element and mark the edge of the parents, to have an idea of the html structure
Right click on any element to see the border, and continue clicking to see the parent element of the last marked element.
The elements are marked with a border, and a random color.
Download and see the project for more details
About
Mark the element's edge and mark the element parent's edge, to have an idea of the html structure
edismr.github.io/targetParentObserve/
Topics
html-developmenthtml-viewshtml5
Resources
Readme
Apache-2.0 license
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages