<div class="diy-area" style="width:100%" id="a-8586">
<style>
.headPic{width: 100%;margin: 0 auto;}
.hb{width: 100%;margin: 0 auto;position: relative;}
</style>

<div class="headPic">
<img class="hb" src="http://upload.10yan.com/2017/0905/1504586714789.jpg">
</div>
</div>