* {
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
}

body {
    display: flex;
    flex-direction: column;
}

header {
    height: 48px;
    background-color: #CE132D;
    overflow: hidden;
    text-align: center;
}

header span {
    vertical-align: middle;
    line-height: 48px;
}

main {
    flex: 1;
    height: fit-content;
    background-color: #1e9fff;
}

footer {
    height: 48px;
    background-color: #CE132D;
}

nav {
    display: flex;
}

nav a {
    flex: 1;
    text-align: center;
}