feat: 更新活动初始样式

overseasActivities/css/base.css

@@ -68,4 +68,9 @@ input[type=number]::-webkit-outer-spin-button {
 ::-webkit-scrollbar{
 ::-webkit-scrollbar{
  display:none;
  display:none;
 }
 }
-/*版芯*/
+
+.ellipsis{
+	  overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
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