body {
    margin: 0;
    background-color: #D9E4F2;
}

main {
    margin: 0 20% 0 20%;
}

header {
    padding: 8px;
    text-align: center;
    color: white;
    border-bottom: 2px solid #2f5b91;
    background-color: #315D93;
}

footer {
    padding: 4px;
    margin-top: 16px;
    text-align: center;
    color: white;
    border-top: 2px solid #2f5b91;
    border-bottom: 2px solid #2f5b91;
    background-color: #315D93;
}

img {
    width: 256px;
    height: auto;
    border: 2px solid #333;
    border-radius: 8px;
}

a {
    text-decoration: none;
}

.item {
    margin: 16px;
    padding: 8px;
    text-align: center;
    border-radius: 16px;
    border: 6px double #333;
    color: white;
    background-color: #5D8DC9;
}

.item:hover {
    background-color: #639bdf;
    transform: scale(1.005);
    transition: .2s ease;
}

.centered {
    text-align: center;
}