.wp-block-button.is-style-w100{
	margin:8px auto 0 auto !important;
}
.editor-styles-wrapper .wp-block-button.is-style-w100,
.editor-styles-wrapper .wp-block-button.is-style-w100 > .wp-block-button__link,
.wp-block-button.is-style-w100,
.wp-block-button.is-style-w100 > .wp-block-button__link{
	width:100% !important;
	margin:0 !important;
}