diff --git a/src/less/widget/multiselect/trigger/button.checkselected.less b/src/less/widget/multiselect/trigger/button.checkselected.less
index b02c76e80..4a36315b0 100644
--- a/src/less/widget/multiselect/trigger/button.checkselected.less
+++ b/src/less/widget/multiselect/trigger/button.checkselected.less
@@ -2,7 +2,6 @@
 
 .bi-multi-select-check-selected-button {
   z-index: 1;
-  min-width: 16px;
   .border-radius(50%);
 
   &:active {