我用CSS3 Flexbox设计了一个100%宽100%高的布局，它可以在IE11上工作(如果IE11的仿真是正确的，也可能在IE10上工作).
但是Firefox(35.0.1)，overflow-y不起作用.正如您在此代码中看到的: http://codepen.io/anon/pen/NPYVga个
Firefox未正确呈现溢出.它显示一个滚动条
html,
body {
height: 100%;
margin: 0;
padding: 0;
border: 0;
}
.level-0-container {
height: 100%;
display: -webkit-box;
display: -webkit-flex;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
-webkit-flex-direction: column;
-ms-flex-direction: column;
flex-direction: column;
}
.level-0-row1 {
border: 1px solid black;
box-sizing: border-box;
}
.level-0-row2 {
-webkit-box-flex: 1;
-webkit-flex: 1;
-ms-flex: 1;
flex: 1;
border: 1px solid black;
box-sizing: border-box;
display: -webkit-box;
display: -webkit-flex;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: horizontal;
-webkit-box-direction: normal;
-webkit-flex-direction: row;
-ms-flex-direction: row;
flex-direction: row;
}
.level-1-col1 {
width: 20em;
overflow-y: auto;
}
.level-1-col2 {
-webkit-box-flex: 1;
-webkit-flex: 1;
-ms-flex: 1;
flex: 1;
border: 4px solid blue;
box-sizing: border-box;
display: -webkit-box;
display: -webkit-flex;
display: -ms-flexbox;
display: flex;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
-webkit-flex-direction: column;
-ms-flex-direction: column;
flex-direction: column;
}
.level-2-row2 {
-webkit-box-flex: 1;
-webkit-flex: 1;
-ms-flex: 1;
flex: 1;
border: 4px solid red;
box-sizing: border-box;
overflow-y: auto;
}<html>
<body>
<div class="level-0-container">
<div class="level-0-row1">
Header text
</div>
<div class="level-0-row2">
<div class="level-1-col1">
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
line <br/>
</div>
<div class="level-1-col2">
<div class="level-2-row1">
Some text
<p/> Some text 2
<p/> Some text 3
<p/>
</div>
<div class="level-2-row2">
<p>some text</p>
<p>some text</p>
<p>some text</p>
<p>some text</p>
<p>some text</p>
<p>some test</p>
</div>
</div>
</div>
</div>
</body>
</html>