Created
February 17, 2017 20:10
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| div[data-line-number]:before { | |
| content:attr(data-line-number); | |
| position: absolute; | |
| background: #000; | |
| color: #fff; | |
| padding: 3px; | |
| display: none | |
| } | |
| div[data-line-number]:hover { | |
| display: block; | |
| } |
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