#menu-btn{display:none}@media (max-width: 768px){#menu-btn{display:block}#menu{display:none}#menu.active{display:block}nav ul{display:none}}html,body{height:100%}body{display:flex;flex-direction:column}main{flex:1}#lacaca{background:#8aeaec;background:linear-gradient(0deg,#8aeaec,#fff 68%)}