body{background: url(https://images.cnblogs.com/cnblogs_com/xu-xiaowei/1824064/t_200809003419%E5%8D%9A%E5%AE%A2%E5%9B%AD.jpg?t=1596938017056) top center;
font-size:20px;
font-family: "verdana","ms song","宋体","Arial","微软雅黑", "Helvetica", "sans-serif";
}
background:rgba(250,250,250,0.8);
font-size:12px;
}
font-family: "verdana","ms song","宋体","Arial","微软雅黑", "Helvetica", "sans-serif";
}
background:rgb(80,90,100);
}
margin-left: 100px;}
opacity:0.9;
margin: 20px;
font-size:10px;
font-family: "verdana","ms song","宋体","Arial","微软雅黑", "Helvetica", "sans-serif";
}
background:rgba(250,250,250,0.5);
margin-top: 20px;
filter:alpha(opacity=40);}

color: #000;
text-shadow: 0 1px 1px #fff;
}