body{
    background: aquamarine;
}
form {
    display: block;
    width: 60%;
    text-align: center;
    margin: 50px auto 0px;
}
label {
    display: contents;
    font: 1rem 'Fira Sans', sans-serif;
    text-align: center;
}
input[type="number"],
label {
    margin: .4rem 0;
    width: 50%;
}
section {
    display: inline-block;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}
h1, footer{
    text-align: center;
    margin: 40px;
}
table{
    border: 2px solid black;
    outline-style: groove;
    display: table;
    margin-left: auto;
    margin-right: auto;
}
td{
    border: 2px solid black;
    outline-style: groove;
}
p,h2{
    margin-bottom: 30px;
}
a{
    border: 1px solid white;
    background-color: white;
    text-decoration: none;
    border-radius: 5px;
    margin: 15px auto 15px;
    display: table;
}