css border-radius 未应用

Question

CSS 边框半径不适用于导航包装器。有什么想法吗？

Fiddle

代码:

HTML:

<div class="navigation">
    <div><a href="">Home</a></div>
    <div><a href="">Products</a></div>
    <div><a href="">Services</a></div>
    <div><a href="">Support</a></div>
    <div><a href="">Contact</a></div>
</div>
<div style="clear:both;"></div>

CSS:

.navigation {   
    position:relative;
    float:left;

    overflow:auto;

    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
}

.navigation div {
    position:relative;
    float:left;

    background: #484745;

    height:53px;
    line-height: 53px;
}

Answer 1

将 background-color 赋予 .navigation。像这样写:

.navigation {    
    background: #484745;
}

检查这个:jsFiddle