css - 父div的高度不调整

Question

我正在尝试创建一个流畅的布局，但容器的高度有一个小问题。外层<div> (黄色，ip_A-1)没有调整到它 child 的高度。

查看 fiddle在这里。

我试过在里面放一个垫片，但没用。同时制作 ip_BA_1 和 ip_BB_1 position:relative什么都不做。

HTML:

<div class="ip_A_1">
    <div class="ip_BA_1">Hello I am a label that has to wrap</div>
    <div class="ip_BB_1">
        <div class="ip_BBA_1">Hello I am a text that has to wrap. 
                              Hello I am a text that has to wrap. 
                              Hello I am a text that has to wrap.</div>
    </div>
    <div class="spacer_0"></div>
</div>

<div class="spacer_0"></div>

<div class="ip_A_1">
    <div class="ip_BA_1">Hello I am a label that has to wrap</div>
    <div class="ip_BB_1">
        <div class="ip_BBA_1">Hello I am a text that has to wrap. 
                              Hello I am a text that has to wrap. 
                              Hello I am a text that has to wrap.</div>
    </div>
    <div class="spacer_0"></div>
</div>

CSS:

.spacer_0 {
    clear:both;
    width:100%;
    height:0px;
}
.ip_A_1 {
    position: relative;
    width: 100%;
    height: auto;
    min-height: 28px;
    text-align: left;
    font-family:'Calibri', 'Gill Sans', 'Helvetica', sans-serif;
    font-size:1em;
    background: yellow;
}
.ip_BA_1 {
    float: left;
    width: auto;
    padding: 4px 10px 20px 45px;
    font-family:'Calibri', 'Gill Sans', 'Helvetica', sans-serif;
    font-size: 0.88889em;
    line-height: 0.88889em;
    font-weight: bold;
    background: blue;
    color: white;
}
.ip_BB_1 {
    clear: both;
    float: left;
    margin-top: -15px;
    width: 100%;
}
.ip_BBA_1 {
    position: absolute;
    left: 30px;
    right: 0px;
    padding-left: 6px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background: #ccc;
    border: 1px solid #666;
}

Answer 1

问题是您在 child 身上使用 float 和 position:absolute; 这些规则阻止 child 扩大 parent 的高度。