* {
    font-family: Helvetica, sans-serif;
}

body {
    padding: 15px;
}


.hide {
    display: none;
}

a, input[type="submit"] {
    background: #007bff;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    text-decoration: none;
    opacity: 0.7;
    font-size: 1em;
    border: none;
    cursor: pointer;
}

a:hover, input[type="submit"]:hover {
    opacity: 1;
}