字体渐变色

  .font2 {
            display: inline-block;
            font-family: '微软雅黑';
            font-size: 10em;
            position: relative;
        }
 
   .font2::after {
            content: attr(data-text);
            color: green;
            position: absolute;
            left: 0;
            z-index: 2;
            -webkit-mask-image: -webkit-gradient(linear, 0 0, 0 bottom, from(#ff0000), to(rgba(0, 0, 255, 0)));
        }