设置图标左对齐

src/components/Banner/ModeChange/index.less

@@ -29,6 +29,10 @@
           &.big-marb{
             margin-bottom: 20px;
           }
+          span{
+            display: inline-block;
+            width: 140px;
+          }
         }
         .fade{
           opacity: .4;