测试

mTest/index.html

@@ -66,10 +66,13 @@
         }
         .add-button {
             position: absolute;
-            top: 1px;
-            left: 1px;
+            width: 10rem;
+            height: 1.92rem;
+            background: url(images/down-go.jpg)no-repeat;
+            background-size: 100% 100%;
+            bottom: 0;
+            left: 0;
             z-index: 500;
-            background: pink;
           }
     </style>
 </head>