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Description
<div class="parent">
<div class="child"></div>
</div>
div.parent {
display: flex;
justify-content: center;
align-items: center;
}
div.parent {
position: relative;
}
div.child {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
/* 或者 */
div.child {
width: 50px;
height: 10px;
position: absolute;
top: 50%;
left: 50%;
margin-left: -25px;
margin-top: -5px;
}
/* 或 */
div.child {
width: 50px;
height: 10px;
position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
margin: auto;
}
div.parent {
display: grid;
}
div.child {
justify-self: center;
align-self: center;
}
div.parent {
font-size: 0;
text-align: center;
&::before {
content: "";
display: inline-block;
width: 0;
height: 100%;
vertical-align: middle;
}
}
div.child{
display: inline-block;
vertical-align: middle;
}
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