CSS div 세로 가운데 정렬 | CSS Vertical Middle for div

CSS

.container {
  display: table;
  height: 100%;
  position: absolute;
  overflow: hidden;
  width: 100%;
}
.helper {
  display: table-cell;
  vertical-align: middle;
}
.content {
  margin: 0 auto;
  width: 200px;
}

HTML

<div class="container">
  <div class="helper">
    <div class="content">TEXT</div>
  </div>
</div>

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Read More

• Using margin:auto to vertically align div (Stack Overflow)