*{
    margin: 0;
    padding: 0;
}
header{background-color: aqua;
font-size: 40px;}
h2{color: aqua;}
h1{text-align: center;
color: white;}
footer{
    position: fixed;
    bottom: 0;
    background-color: aqua;
    left: 0;
    right: 0;
}
address{
    text-align: center;
    font: 50px;
    margin-top: 15px;
}
nav{background-color: burlywood;
height: 50px;
display: flex;
justify-content: space-around;
align-items: center;
}
a{
    text-decoration: none;
    display: block;
    width: 90px;
    background-color: blue;
    color: white;
    height: 50px;
    margin: 0 auto;
    text-align: center;
    padding-top: 15px;
    box-sizing: border-box;
}
img{
    width: 50%;
    margin: 0 auto;
    display: block;
}
main{
    padding-bottom: 50px;
}