.wp-block-separator:not(.is-style-wide):not(.is-style-dots):not(.alignwide):not(.alignfull) { 
width: 128px;
}
.wp-block-separator:not(.is-style-dots):not(.has-background) {
background-image: var( --wp--preset--gradient--aurora-horizontal-fade );
border: none;
height: 1px;
}