default.css

html {
    margin: 0;
}

body {
    background-color: #ece4d8;
    color: #333333;
    font-family: 'Helvetica', 'Arial', sans-serif;
    font-size: 1.1em;
    line-height: 1.5em;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    width: 80%;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.25em;
}

h1 {
    font-size: 2.25em;
}

p {
    margin: 0 0 0.75em;
}

a {
    color: #477dca;
    text-decoration: none;
    transition: color 0.1s linear;
}

a:hover {
    color: #2c5999;
}

a:active, a:focus {
    color: #2c5999;
    outline: none;
}

header {
    margin-bottom: 3em;
    padding: 2em 0;
    text-align: center;
}

details {
    margin-bottom: 3em;
}

details h2 {
    font-size: 1.5em;
}

footer {
    padding: 1em 0 3em 0;
}

iframe {
    border: 0;
}

blockquote {
    border: 2px solid #7c334f;
    border-radius: 6px;
}

img {
    box-shadow: 10px 10px 15px grey;
}