使用网上提供的mask-image方法实现文字渐变不成功，vscode一直报错
<style type="text/css">
.gradient-text-two{
color:red;
display: inline-block;
}
.gradient-text-two[data-content]::after{
content:attr(data-content);
display: block;
position:absolute;
color:yellow;
left:0;
top:0;
z-index:2;
-webkit-mask-image:-webkit-gradient(linear, 0 0, 0 bottom, from(yellow), to(rgba(0, 0, 255, 0)));
}
</style>
</head>
<body>
<div class="gradient-text-two">我是渐变文字</div>
</body>
