*{margin:0;padding:0;}
body{width:100vw;min-height: 100vh;}
header{height: 20vh;display: flex;
    flex-direction: row;
justify-content: space-between;}
main{min-height: 60vh;display: flex;flex-direction: row;}
footer{height: 20vh;}
section{border: 1px solid red;min-height: 60vh;flex:4}
aside{flex:1;min-height: 60vh;}
.menuhor{display: flex;flex-direction: row;}
.menuvert{display: flex;flex-direction: column;}