.wp-block-button__link,button,input[type="button"],input[type="submit"]{background-color:#77c236!important;color:#fff!important;border:none;transition:background-color .3s}
.wp-block-button__link:hover,button:hover,input[type="button"]:hover,input[type="submit"]:hover{background-color:#77c236!important;color:#fff!important}