[英]Css animation - with vertical line on a horizontal line
也許使用偽元素
.line::before,
.line::after
{
content: ''; /* important for pseudo elements */
width: 4px;
height: 20px;
position: absolute;
background: red;
}
.line::after { right: 0 } /* snap to right */
.line::before { left: 0 } /* snap to left */
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