.wp-block-buttons .wp-block-button .wp-element-button[data-loading="true"] {
	color: var(--wp--preset--color--btn-primary-hover);
	background-color: var(--wp--preset--color--btn-primary-hover);
	position: relative;
}
.wp-block-buttons .wp-block-button .wp-element-button[data-loading="true"]::after {
	animation: girar-360 1s linear infinite;
	color: #fff;
	content: 'progress_activity';
	font-family: var(--wp--preset--font-family--ff-material);
	font-size: 24px;
	position: absolute;
	top: -14px;
	left: 0;
	right: 0;
	margin: auto;
}

@keyframes girar-360 {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}