css
body {
    background: #f7d8b1;
    background: linear-gradient(to bottom, #f7d8b1, #f7d8b1);
}

h1 {
    font-weight: bold;
    font-size: 32px;
    color: #000000;
    border-bottom: 8px solid #000000;
}

h2 {
    font-size: 20px;
    margin-top: -10px;
    padding-bottom: 4px;
    border-bottom: 8px solid #000000;
}

body > h1 {
    margin-top: 0;
    padding-top: 0;
}

bodyประก
body .container {
    background: #f7d8b1;
    padding: 16px;
    border: 4px solid #000000;
    border-bottom: 8px solid #000000;
}

body .container::after {
    content: '';
    display: block;
    clear: both;
}

body .header {
    border-bottom: 4px solid #000000;
}

body .footer {
    border-top: 4px solid #000000;
}

body .footer::after {
    content: '';
    display: block;
    clear: both;
}

h1 {
    background: #f7d8b1;
    padding: 8px 16px;
    margin: 0;
}

h2 {
    font-size: 20px;
    background: #f7d8b1;
    padding: 4px 8px;
    margin: 0;
}

h3 {
    font-size: 14px;
    background: #f7d8b1;
    padding: 2px 4px;
    margin: 0;
}

body > * {
    font-family: Arial, sans-serif;
}

body > *:before {
    content: '';
    display: block;
    border: 4px solid #000000;
}

ประก
body .container > *:before {
    display: none;
}

body > *:last-child {
    border-bottom: 4px solid #000000;
}

body > *:first-child {
    margin-top: 0;
}

body > * {
    margin: 16px;
}

body .container * {
    margin: 0;
}