diff --git a/frontend/app/block/block.less b/frontend/app/block/block.less
index 956ecea0a..a9a27356d 100644
--- a/frontend/app/block/block.less
+++ b/frontend/app/block/block.less
@@ -81,18 +81,9 @@
                 border-bottom: 1px solid var(--border-color);
                 border-radius: var(--block-border-radius) var(--block-border-radius) 0 0;
 
-                .block-frame-preicon-button {
-                    opacity: 0.7;
-                    cursor: pointer;
-
-                    &:hover {
-                        opacity: 1;
-                    }
-                }
-
                 .block-frame-default-header-iconview {
                     display: flex;
-                    flex-shrink: 1;
+                    flex: 0 1 auto;
                     align-items: center;
                     gap: 8px;
                     overflow-x: hidden;