优化UI，修复群BUG

TUIKit/components/TUIGroup/manage-group/style/index.scss

@@ -3,7 +3,6 @@
 @import './web';
 @import './h5';
 
-
 .icon-close {
   display: inline-block;
   width: 24px;
@@ -14,9 +13,9 @@
 
 .icon-close::before,
 .icon-close::after {
-  content: "";
+  content: '';
   position: absolute;
-  background-color: #8F959E;
+  background-color: #8f959e;
   height: 16px;
   width: 2px;
   top: 50%;
@@ -37,3 +36,17 @@
   position: absolute;
   left: 20px;
 }
+
+.main {
+  background: #f4f4f4;
+  .main-box {
+    padding: 32rpx 24rpx;
+    .space-top {
+      border-top: 0 !important;
+      background: #ffffff;
+      border-radius: 16rpx !important;
+      margin-top: 20rpx;
+      overflow: hidden;
+    }
+  }
+}