styles.css

body {
    height: 100vh;
    width: 70%;
    margin: 5% auto 0;
    font-family: sans-serif;
}

.text-container {
    box-sizing: border-box;
    padding: 0px 35px;
}

h1, h3{
    margin-bottom: 0px;
}
h2{
    margin-top: 0px;
}

p{
    font-size: 18px;
}

img {
    display: block;
    max-width: 350px;
    margin: 0 auto;
    text-align: center;
}

.large-central-logo {
    width: 100%;
}

.top-left-logo {
    width: 40px;
}

@media only screen and (max-width: 760px) {
    body{
        width: 90%;
    }
}

.hidden-answer input[type="checkbox"] {
    display: none;
}

.hidden-answer label {
    color: -webkit-link;
    cursor: pointer;
    display: block;
    font-size: 1rem;
    padding: .5rem 0;
    text-decoration: underline
}

.content {
    height: 0;
    padding: 0 .5rem;
    overflow: auto;
}

.hidden-answer input[type="checkbox"]:checked ~ label ~ .content {
    height: auto;
    min-height: 4rem;
}

/* For Page 404 */

.container_error {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.container_error h1{
    margin-top: 0px;
    font-size: 5em;
}

.sad_face{
    width: 100px;
}