实训课程块里有没有数据的可能，需要固定高度

public/stylesheets/educoder/edu-all.css

@@ -74,7 +74,7 @@ em.vertical-line{display: inline-block;width: 2px;background: #999;height: 10px}
 .moreitem{position: absolute;right: 5px;top:35px;height: 15px;color:#656565}
 /*块状列表*/
 .square-list{width: 100%;box-sizing: border-box;margin-top:20px}
-.square-Item{position: relative;width:280px;margin-right: 26px;margin-bottom: 26px;float: left;border-radius: 6px;background-color:#fff;box-shadow: 0px 0px 12px rgba(0,0,0,0.1); }
+.square-Item{position: relative;width:280px;margin-right: 26px;margin-bottom: 26px;float: left;border-radius: 6px;background-color:#fff;box-shadow: 0px 0px 12px rgba(0,0,0,0.1); height: 301px;}
 .square-Item:hover{bottom: 3px; box-shadow: 0px 0px 12px rgba(0,0,0,0.3);}
 .square-Item:hover .closeSquare{display: block}
 .square-Item:nth-child(4n+0){margin-right: 0px;}