修改高度

src/views/co-ai/baseIndex.module.less

@@ -267,7 +267,7 @@
   z-index: 3;
   display: block;
   width: 100%;
-  line-height: 1;
+  line-height: 0;
   // height: calc(100% * 161 / 128 - 20px);
   background-color: #edeff2;
   background-image: url('../courseware-list/image/icon_default.svg');