html, body {
    max-width: 100%;
    margin: 0;
    padding: 0;
}

* {
    box-sizing: border-box;
}

body {
    font-family: sans-serif;
}

/* --- Header --- */
header {
    margin: 1em;
}

header h1 {
    margin: 1em;
}

/* --- Login page --- */
main.login_page {
    margin: 2em;
    padding: 1em;
    border: 1px gray solid;
    width: auto;
}

main.login_page h2 {
    margin: 0 0 0.5em 0;
}

main.login_page table td {
    padding: 0.2em;
}

/* --- Text and other styling --- */
.error {
    background: #ff4444;
    width: 30em;
    margin: 1em 0;
    padding: 1em;
}

button {
    padding: 0.2em 1em;
}