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

.fixed-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: blue;
    color: #fff;
    padding: 0px;
    text-align: center;
}

main {
    padding: 50px 10px 20px; /* Adjust padding to avoid content overlap with fixed header */
}

section {
    margin-bottom: 20px;
}

footer {
    background-color: red;
    color: #fff;
    text-align: center;
    padding: 0px;
    position: fixed;
    bottom: 0;
    width: 100%;
}