nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline-block;
    margin-right: 1em;
}

nav ul li:first-child {
    font-size: 1.1em;
    font-weight: 500;
}

h1 {
    font-size: 1.6em;
    line-height: 1.5;
    padding-bottom: .5em;
}

h2 {
    font-size: 1.4em;
    padding: .5em 0;
}

h3 {
    font-size: 1.2em;
    padding: .3em 0;
}

h4 {
    font-size: 1em;
    padding: 0;
}

.signature-form p {
    margin-bottom: .5em;
}

.signature-form input {
    width: 320px;
    max-width: 100%;
}

.signature-form textarea {
    width: 320px;
    max-width: 100%;
    min-height: 100px;
}

button {
    font-size: 1.2em;
    padding: .5em 1.5em;
}

footer {
    text-align: center;
    margin-top: 2em;
    border-top: 1px solid #ccc;
    padding-top: 2em;
    font-size: .8em;
}

audio {
    width: 100%;
}

small {
    color: #888;
    font-size: 0.8em;
}

h3 small {
    background-color: #4a4a4a;
    color: white;
    padding: 0 5px;
}

.form-field {
    margin: 0 auto 1rem;
}

.form-field input[type=text],
.form-field input[type=email] {
    min-width: 300px;
}

.form-field textarea {
    width: 300px;
    height: 100px;
}

.inline > * {
    display: inline !important;
}

.required:after {
    content: ' *';
    color: red;
}