* {
    margin: 0;
}
header{
    width: 100%;
    height: 25vh;
    background-color: rgb(40, 40, 40);
    margin: 0;
    overflow: hidden;
}
nav{
    float: left;
    width: 25%;
    height: calc(70vh - 20px);
    background-color:  rgba(65, 177, 177, 0.525) ;
    text-align: center;
    font-size: 30px;
    color: whitesmoke;
    border: 10px rgba(65, 177, 177, 0.525) solid;
    align-content: center;
}
section{
    margin-top: 10%;
}
a:link, a:visited{
    text-decoration: none;
    color: whitesmoke;
}
main{
    width: calc(75% - 20px);
    background-color:rgb(97, 97, 97);
    height: 70vh;
    float: right;
    color: azure;
    overflow: auto;
}
main > p{
    margin: 5%;
    margin-bottom: 0;
}
main h1{
    text-align: center;
}
footer{
    height: 5vh;
    width: 100%;
    background-color: grey;
    float: left;
    text-align: center;
}
footer > p{
    margin: 1.5%;
}
#main2 > section > * {
    margin: 2%;
}
ul{
    padding-left: 5%;
}
#main3{
    text-align: center;
}
form{
    display: block;
    margin: 5%;
}
form > input{
    border-radius: 20px;
    border: 2px solid blue;
    
}