.userBanner.userBanner--gosharespach {
    color: #fff;
    border: none;
    background-image: linear-gradient(210deg, #f00, #00f, #f00, #00f, #f00, #00f, #f00, #00f);
    background-size: 900% 900%
}
 
.userBanner.userBanner--gosharespach .userBanner-before:before {
    content: ""...