相关疑难解决方法(0)

我有两个高度为90%的div,但显示效果不同.

我试图在它们周围放置一个外部div,但这没有帮助.此外,它在Firefox,Chrome,Opera和Safari上也是如此.

有人能解释我为什么会遇到这个问题吗？

以下是我的代码:

<div style="height: 90%">
    <div ng-controller="TabsDataCtrl" style="width: 20%; float: left;">
        <tabset>
            <tab id="tab1" heading="{{tabs[0].title}}" ng-click="getContent(0)" active="tabs[0].active"
               disabled="tabs[0].disabled">
            </tab>


            <tab id="tab2" heading="{{tabs[2].title}}" ng-click="getContent(2)" active="tabs[2].active"
                 disabled="tabs[2].disabled">
            </tab>
        </tabset>
    </div>

    <div id="leaflet_map" ng-controller="iPortMapJobController">
        <leaflet center="center" markers="markers" layers="layers" width="78%"></leaflet>
    </div>
</div>

如何将文本居中对齐<img>优选使用FlexBox？

body {
  margin: 0px;
}

.height-100vh {
  height: 100vh;
}

.center-aligned {
  display: box;
  display: flex;
  box-align: center;
  align-items: center;
  box-pack: center;
  justify-content: center;
}

.background-image {
  position: relative;
}

.text {
  position: absolute;
}

<section class="height-100vh center-aligned">
  <img class="background-image" src="http://vignette2.wikia.nocookie.net/uncyclopedia/images/f/f8/Stand-out-in-the-crowd-300x300.jpg" />
  <div class="text">SOME TEXT</div>
</section>