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.cocalc-data-grid-column-resizer {
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  cursor: ew-resize;
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  position: absolute;
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  width: 10px;
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  right: 0;
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  top: 0;
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  bottom: 0;
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  height: 100%;
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}
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.cocalc-data-grid-column-resizer:hover {
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  border-right: 6px solid #428bca;
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}
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