使用显示内联块和位置相对来集中div

Question

我试图纵向和横向集中,但没有成功:

https://jsfiddle.net/szg7hhph/1/embedded/result/

HTML:

<div id="new__event">
  <div class="target">
    <h2>Free Pass</h2>
  </div>
</div>


body {
  margin: 0;
}

#new__event {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 200ms;
}
#new__event {
  pointer-events: all;
  opacity: 1;
}
#new__event .target {
  cursor: pointer;
  position: relative;
  display: inline-block;
  padding: 48px;
  width: 50%;
  margin: 0 auto;
  box-shadow: 0px 12px 24px rgba(0, 0, 0, 0.2);
  background: white;
  color: #f98835;
  margin-top: 1.5rem;
}

我已经尝试了margin 0 auto,text-align,vertical-align,但是这个框仍然存在于角落里.

Answer 1

更改position的#new_event .target到absolute,去除margin-top性能,并添加了以下新特性:

box-sizing: border-box;
left: 25%;
top: 50%;
transform: translateY(-50%);

这应该从IE 9开始.

结果