html - 如何让div里面的div居中

Question

请问关于div里面的div怎么才能在屏幕上居中，根据里面的div是自适应的 最好可以是一排三个相等的div 两个显示，不管屏幕多大

.wrap {
  border: solid 1px;
  width: 100%;
  height: 50%;
  text-align: center;
  margin: 0 auto;
}
.wrap>.child {
  border: solid 1px red;
  min-width: 32%;
  height: 100%;
  float: left;
  margin: 0 auto;
}

<div class="wrap">
  <div class="child">1</div>
  <div class="child">2</div>
  <div class="child">3</div>
  <div class="child">4</div>
  <div class="child">5</div>
  <div class="child">6</div>
</div>

Answer 1

这应该可以解决问题

.wrap {
  border: solid 1px;
  text-align: center;
  position: absolute;
  width: 100%;
  height: 50%;
  top: 2px;
  bottom: 2px:
  right: 2px;
  left: 2px;
}
.wrap>.child {
  border: solid 1px red;
  min-width: 32%;
  height: 100%;
  float: left;
  margin: 0 auto;
}

<div class="wrap">
  <div class="child">1</div>
  <div class="child">2</div>
  <div class="child">3</div>
  <div class="child">4</div>
  <div class="child">5</div>
  <div class="child">6</div>
</div>