@font-face {
    font-family: 'ConsolasBold';
    src: url('ConsolasBold.otf') format('opentype');
    font-weight: bold;
    font-display: swap;
}

body {
    margin: 20px 0 0 0;
    font-family: 'ConsolasBold', 'consolas';
    font: 14px 'ConsolasBold';
    color: #fff;
    text-align: center;
    background-color: #1d1d1d;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main {
    border: thick double;
    padding: 20px;
    width: 800px;
    max-width: 100%;
    box-sizing: border-box;
}

a {
    color: #949494;
    text-decoration: none;
}

.title {
    font-size: 3em;
    font-weight: 400;
}

a:hover {
    text-decoration: underline;
}

.info {
    display: flex;
    justify-content: center;
}

.info > div {
    margin: 0 20px;
}

.h1-404 {
    font-size: 6em;
    font-weight: 400;
    margin: 0 auto;
}

.mybutton {
    height: 50px;
    width: 40%;
    resize: none;
    color: white;
    background-color: #1d1d1d;
}

@media (max-width: 800px) {
    body { gap: 15px; padding: 0 10px; }
    main { padding: 15px; width: auto; max-width: 100%; }
    h1 { font-size: 1.5rem; }
    h2, h3 { font-size: 1.1rem; margin: 12px 0; }
    .info { display: block; }
    .info > div { margin: 0; }
}