鼠标悬停显示隐藏省略文字
.title_content{
font-size:14px;
margin: 10px 5px;
text-overflow:ellipsis;
overflow:hidden;
white-space:nowrap;
}
.title_content:hover{
text-overflow:inherit;
overflow: visible;
white-space: pre-line;
}
<div class='title_content'>隐藏ellipsis</div>