aside{background-color:#dbdbdb;height:100dvh;left:0;opacity:0;overflow:hidden;padding:10px;position:fixed;top:0;transition:width .5s,opacity .5s;width:0;z-index:1000}.dark aside{background-color:#333;color:#fff}aside.isOpen{opacity:1;transition:width .5s,opacity .5s;width:250px}@media screen and (max-width:768px){aside.isOpen{width:100%}}.nav_button{left:0;margin:10px;position:fixed;top:0;z-index:1001}.nav_main{display:block;margin-top:50px}.nav_bottom{bottom:0;left:0;padding:10px;position:absolute;width:100%}main{margin-top:60px}footer{color:#333;margin:20px 0;text-align:center;width:100%}@media screen and (min-width:768px){footer,main{margin-left:250px;width:calc(100vw - 250px)}}.required{color:red}input{font-size:16px!important}