Update _res/_custom.css

_res/_custom.css

@@ -231,6 +231,7 @@ span.has-info+div {
         transition: transform 0.2s ease-in-out, width 0.3s ease-in-out, height 0.38s ease-in-out 0.1s;
         border-radius: 0.4rem;
         border: 4px solid var(--text-color-by-luminance);
+        overflow: hidden;
         /*background: transparent;*/
         
         & div {