Index: wp-content/themes/twentytwenty/assets/css/editor-style-block.css
===================================================================
--- wp-content/themes/twentytwenty/assets/css/editor-style-block.css	(revision 54300)
+++ wp-content/themes/twentytwenty/assets/css/editor-style-block.css	(working copy)
@@ -927,6 +927,7 @@
 :root .editor-styles-wrapper .wp-block-button__link,
 :root .editor-styles-wrapper .wp-block-file__button {
 	background: #cd2653;
+	width: 100%;
 	border-radius: 0;
 	color: #fff;
 	font-size: 15px;
@@ -1515,3 +1516,24 @@
 
 
 }
+.wp-block-buttons .wp-block[data-align="left"] > .wp-block-button.wp-block-button__width-75, 
+.wp-block-buttons .wp-block[data-align="center"] > .wp-block-button.wp-block-button__width-75,
+.wp-block-buttons .wp-block[data-align="right"] > .wp-block-button.wp-block-button__width-75{
+    width: calc(75% - var(--wp--style--block-gap, .5em)*0.25);
+}
+
+.wp-block-buttons .wp-block[data-align="left"] > .wp-block-button.wp-block-button__width-100,
+.wp-block-buttons .wp-block[data-align="center"] > .wp-block-button.wp-block-button__width-100,
+.wp-block-buttons .wp-block[data-align="right"] > .wp-block-button.wp-block-button__width-100{
+    width: calc(100% - var(--wp--style--block-gap, .5em)*0.25);
+}
+.wp-block-buttons .wp-block[data-align="left"] > .wp-block-button.wp-block-button__width-50,
+.wp-block-buttons .wp-block[data-align="center"] > .wp-block-button.wp-block-button__width-50,
+.wp-block-buttons .wp-block[data-align="right"] > .wp-block-button.wp-block-button__width-50{
+        width: calc(50% - var(--wp--style--block-gap, .5em)*0.25);
+}
+.wp-block-buttons .wp-block[data-align="left"] > .wp-block-button.wp-block-button__width-25,
+.wp-block-buttons .wp-block[data-align="center"] > .wp-block-button.wp-block-button__width-25,
+.wp-block-buttons .wp-block[data-align="right"] > .wp-block-button.wp-block-button__width-25{
+        width: calc(25% - var(--wp--style--block-gap, .5em)*0.25);
+}
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