Saber/public/cdn/element-ui/2.8.2/theme-chalk/main.css

.el-main{display:block;-webkit-box-flex:1;-ms-flex:1;flex:1;-ms-flex-preferred-size:auto;flex-basis:auto;overflow:auto;-webkit-box-sizing:border-box;box-sizing:border-box;padding:20px}