优化部分页面显示效果

static/css/main.css

@@ -260,10 +260,10 @@ textarea{
 }
 .manual-list .list-item .manual-item-standard .cover {
     border: none;
-    width: 171px;
+    width: 170px;
     position: relative;
     display: inline-block;
-    height: 229px;
+    height: 230px;
     background-color: #eee;
     border-radius: 2px;
     box-shadow: 0 1px 3px 0 #d4d4d5, 0 0 0 1px #d4d4d5;