craftcms
diff --git a/‎src/web/assets/cp/dist/css/craft.css
+3-3 b/‎src/web/assets/cp/dist/css/craft.css
+3-3
diff --git a/‎src/web/assets/cp/dist/css/craft.css.map
+1-1 b/‎src/web/assets/cp/dist/css/craft.css.map
+1-1
diff --git a/‎src/web/assets/cp/src/css/_main.scss
+3 b/‎src/web/assets/cp/src/css/_main.scss
+3
@@ -3606,6 +3606,7 @@ ul.tree,
     height: 100%;
     left: 0;
     transition: top linear 250ms;
+    will-change: top;
   }
 
   &:not(.so-mobile) {
@@ -3616,9 +3617,11 @@ ul.tree,
 
     body.ltr & {
       transition: left linear 250ms;
+      will-change: left;
     }
     body.rtl & {
       transition: right linear 250ms;
+      will-change: right;
     }
   }
 }
Original file line number	Diff line number	Diff line change
`@@ -3606,6 +3606,7 @@ ul.tree,`
`3606`	`3606`	`height: 100%;`
`3607`	`3607`	`left: 0;`
`3608`	`3608`	`transition: top linear 250ms;`
	`3609`	`+ will-change: top;`
`3609`	`3610`	`}`
`3610`	`3611`
`3611`	`3612`	`&:not(.so-mobile) {`
`@@ -3616,9 +3617,11 @@ ul.tree,`
`3616`	`3617`
`3617`	`3618`	`body.ltr & {`
`3618`	`3619`	`transition: left linear 250ms;`
	`3620`	`+ will-change: left;`
`3619`	`3621`	`}`
`3620`	`3622`	`body.rtl & {`
`3621`	`3623`	`transition: right linear 250ms;`
	`3624`	`+ will-change: right;`
`3622`	`3625`	`}`
`3623`	`3626`	`}`
`3624`	`3627`	`}`