body {
    font-family: Arial, sans-serif;
    line-height: 1.5;
    margin: 0;
    padding: 0;
}

header {
    background-color: #ff0000;
    color: #fff;
    text-align: center;
    padding: 0.25rem;
}

footer {
    background-color: #d3d3d3;
    color: #fff;
    text-align: center;
    padding: 0.25rem;
    position: relative;
    bottom: 0;
    width: 100%;
}

.container {
    max-width: 748px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: #fff;
}

main {
    padding: 2rem;
}

/* Styles for smaller screens (mobile devices) */
@media screen and (max-width: 768px) {
    main {
        padding: 0.42rem;
    }
    
    .container {
        margin: 0.2rem auto;
        padding: 0.2rem;
    }
}