.big-button.bigblackpopup-custom-button{background-color:black!important;color:yellow!important;border:none!important;padding:10px 20px;text-align:center;text-decoration:none;display:inline-block;font-size:16px;cursor:pointer}.big-button.bigblackpopup-custom-button:hover{background-color:#333!important;color:#ff0!important}