CSS动态渐变彩色文字代码

<div class="wrap">Hello,world!</div>

@keyframes move {
0% {background-position: 0 0;}
100% {
/*宽度固定，如果为百分比背景不会滚动*/
background-position: -300px 0;
}
}
.wrap {
/*设置背景渐变色*/
background-image: linear-gradient(to right, red, orange, yellow, green, yellow, orange, red, orange,yellow, green, yellow, orange, red);
/*chrome私有样式，加前缀，文字显示背景图片*/
-webkit-background-clip: text;
animation: move 5s infinite;
/*文字颜色设为透明*/
color: transparent;
/*宽度固定*/
width: 300px;
}