div随内容调整高度(父元素高度随子元素变化)

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<div style=" 360px;">
<div class="message"><img class="icon friend" src="//pic.cnblogs.com/avatar/814901/20170506112856.png" alt="" /> <a class="text friend">?????????????????????????????????????????</a>
<div class="clear">&nbsp;</div>
</div>
<div class="message"><a class="text user">akldjsfasklsdajflkasdjflksadjflksadjfsadkljfasjdkl</a> <img class="icon user" src="//pic.cnblogs.com/avatar/814901/20170506112856.png" alt="" />
<div class="clear">&nbsp;</div>
</div>
<div class="message"><img class="icon friend" src="//pic.cnblogs.com/avatar/814901/20170506112856.png" alt="" />
<p class="nickname">dy</p>
<a class="text friend">???????</a>
<div class="clear">&nbsp;</div>
</div>
</div>

.message {
    position: relative;
    width: 100%;
    padding-top: 12px;
}
.message .icon {
    position: absolute;
    display: block;
    height: 44px;
    width: 44px;
    top: 12px;
}
.message .icon.friend{
    left: 9px;
}
.message .icon.user{
    right: 8px;
}
.message .text {
    position: relative;
    display: block;
    border-radius:10px;
    max-width: 223px;
    height: auto;
    padding: 11px 20px 19px 17px;
    font-size:14px;
    color:#4a4a4a;
    resize: none;
    word-break: break-all;/*自动换行*/
    word-wrap: break-word;/*以单词换行*/
    white-space: pre-wrap;
    float: left;
}
.message .text.user {
    background:rgba(24,187,155,0.60);
    right: 69px;
    float: right;
}
.message .text.friend {
    background:#d8d8d8;
    left: 69px;
}
.message .nickname {
    margin: 0;
    padding: 0;
    font-size:12px;
    color:rgba(0,0,0,0.54);
    width:223px;
    line-height:20px;
    left:69px;
}

css样式clear设为both，然后父元素的高度就会随子元素改变了

块内icon用绝对位置，不会对相对位置的块造成影响

参考自 让div父元素的高度随子元素高度的变化而变化