修复tag文字居中不显示的bug

@@ -100,8 +100,10 @@ $basicBtnC:#eb0313;
             margin-left: .5px;
             font-size: pxToRem(18px);
             text-align: center;
-            line-height: pxToRem(30px);
-            padding: 0 8px;
+            line-height: pxToRem(24px);
+            position: relative;
+            vertical-align: middle;
+            padding:0 5px;
         }
         .new-tag {
             background-color: #78dc7e;