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/* For horizontal align: */
parent-element {text-align:center;}
/* For horizontal and vertical align: */
parent-element {position: relative;}
element-to-be-centered {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
/* See https://www.w3schools.com/css/css_align.asp for more info */
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text-align: center;
vertical-align: middle;
line-height: 90px; /* The same as your div height */
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#container {
display: flex;
justify-content: center;
align-items: center;
}
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html, body {
height: 100%;
}
.parent {
width: 100%;
height: 100%;
display: table;
text-align: center;
}
.parent > .child {
display: table-cell;
vertical-align: middle;
}