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34 lines
1,003 B
HTML
34 lines
1,003 B
HTML
<!DOCTYPE html>
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<style>
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.test {
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white-space: pre;
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tab-size: 8; /* the initial value, but since we're measuring against it, we might as well be sure */
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font-family: monospace; /* because the ch unit is based on the size of the 0 character,
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and we want to measure space characters
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so they need to be the same size. */
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letter-spacing: 2px;
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font-size: 13px;
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word-spacing: 10px;
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}
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span {
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display: inline-block;
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width: 20px;
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height: 20px;
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background: green;
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}
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.ref {
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position: absolute;
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z-index: -1;
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width: 20px;
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height: 20px;
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background: red;
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margin-left: calc(8ch + 8 * 2px + 8 * 10px);
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/* this is to avoid antialiasing effects at the edge */
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box-sizing: border-box;
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border: 2px solid white;
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}
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</style>
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<div class="ref"></div>
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<div class="test">	<span></span></div>
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