<div class="list clearfix" >
<a href="/a/b" class="news-link" target="_blank"></a>
</div>
.column_1 .jslist .list {
/* 父级元素要先定位*/
position: relative;
}
.news-link {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
text-indent: -999em;
white-space: nowrap;
overflow: hidden;
z-index: 0;
}
