Correct default appender insertter jumpiness in Safari (#15892)

kjellr · web-flow · commit 1a6660c3ba6c · 2019-05-30T10:35:56.000-04:00
diff --git a/packages/block-editor/src/components/default-block-appender/style.scss b/packages/block-editor/src/components/default-block-appender/style.scss
@@ -32,6 +32,7 @@
 	.block-editor-inserter__toggle:not([aria-expanded="true"]) {
 		opacity: 0;
 		transition: opacity 0.2s;
+		will-change: opacity;
 	}
 
 	&:hover {

Original file line number	Diff line number	Diff line change
`@@ -32,6 +32,7 @@`
`32`	`32`	`.block-editor-inserter__toggle:not([aria-expanded="true"]) {`
`33`	`33`	`opacity: 0;`
`34`	`34`	`transition: opacity 0.2s;`
	`35`	`+ will-change: opacity;`
`35`	`36`	`}`
`36`	`37`
`37`	`38`	`&:hover {`