<div style="width: 8.8rem;
  height: 14.774rem;
  background-image: url('https://imagesXXXXXXXXXX');
  background-size: cover;
  border-radius: 0.29rem;"
>

<div style="width: 8.8rem;
  height: 14.774rem;
  background-image: url(/image/XXX.png);
  background-size: cover;
  border-radius: 0.29rem;"
>

<div style="width: 8.8rem;
  height: 14.774rem;
  background-image: url(data:image/png;base64,base64编码的png图片数据);
  background-size: cover;
  border-radius: 0.29rem;"
>

<div style="width: 8.8rem;
  height: 14.774rem;
  background-image: url(data:image/gif;base64,base64编码的png图片数据);
  background-size: cover;
  border-radius: 0.29rem;"
>

data:,文本数据
data:text/plain,文本数据
data:text/html,HTML代码
data:text/html;base64,base64编码的HTML代码
data:text/css,CSS代码
data:text/css;base64,base64编码的CSS代码
data:text/javascript,Javascript代码
data:text/javascript;base64,base64编码的Javascript代码
data:image/gif;base64,base64编码的gif图片数据
data:image/png;base64,base64编码的png图片数据
data:image/jpeg;base64,base64编码的jpeg图片数据
data:image/x-icon;base64,base64编码的icon图片数据