*{
    margin: 0;
    box-sizing: border-box
}
div{
    width: 80%;
    margin: auto;
    background-color: aliceblue;

}
header{
    background-color: #badaf5;
    font-size: calc(2px + 2vw);
    text-align: center;
}
header h1{
    color: darkblue;
}
nav{
    background-color: #97cef1;
    text-align: center;
}
nav ul{
    padding-left: 0;
}
nav ul li{
    display: inline;
    font-size: calc(2px + 2vw);
}
main{
    background-color: #6b9fbf;
    color: #0a323a;
    font-size: calc(2px + 2vw);
    text-align: center;
}
main h2{
    color: #191978;
    border: 2px yellowgreen dotted;
}
main img{
    width: 88%;
}
footer{
    background-color: #95e3cb;
    font-size: calc(5px + 1vw);
    text-align: center;
}