body{font-family:Open Sans,serif;margin:0;background-color:#2a2e33;color:#fff}.el-header{background-color:#1a2029;color:#333;line-height:60px;position:fixed;top:0;height:60px;width:100%;z-index:1}.el-aside{position:fixed;left:0;background-color:#2a2e33;height:100%;width:300px;overflow-y:scroll;-ms-overflow-style:none;scrollbar-width:none}.el-aside::-webkit-scrollbar{display:none}.app-main{margin-left:300px}.el-aside{color:#333}