修改样式

src/components/ChooseStudent/index.vue

@@ -409,6 +409,11 @@ defineExpose({
               width: 40px;
               height: 40px;
               position: relative;
+              border-radius: 50%;
+              display: flex;
+              justify-content: center;
+              align-items: center;
+              overflow: hidden;
 
               img {
                 width: 100%;