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February 19, 2016 19:14
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Dynamically inject heading links
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| /* unobtrusively style deep-linking heading anchors */ | |
| .anchor { | |
| color: gray; | |
| display: inline-block; | |
| margin-left: -1rem; | |
| opacity: 0; | |
| padding-right: 0.1rem; | |
| -webkit-transition: opacity cubic-bezier(0,1,.35,.96) 1s; | |
| -moz-transition: opacity cubic-bezier(0,1,.35,.96) 1s; | |
| -ms-transition: opacity cubic-bezier(0,1,.35,.96) 1s; | |
| } | |
| h2:hover .anchor, | |
| h3:hover .anchor, | |
| h4:hover .anchor, | |
| h5:hover .anchor, | |
| h6:hover .anchor { | |
| opacity: 1; | |
| text-decoration: none; | |
| } |
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| // auto-link page headings 0.1 KB minified | |
| [].forEach.call(document.querySelectorAll('h2,h3,h4,h5,h6'), function(tag) { | |
| tag.id && (tag.innerHTML = '<a href="#' + tag.id + '"class="anchor">¶</a>' + tag.innerHTML) | |
| }); |
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