.wp-block-button.is-style-glass-light .wp-block-button__link.wp-element-button {
    background-color: rgba(255, 255, 255, .25);
    backdrop-filter: blur(6px);

    transition: background-color .3s cubic-bezier(0.25, 1, 0.5, 1);
}
.wp-block-button.is-style-glass-light .wp-block-button__link.wp-element-button:hover {
    background-color: rgba(255, 255, 255, .35);
}