body {
    background-color: #191919;
    color: #fff;
    font-family: sans-serif;
    text-align: center;
}

a {
    color: #0ff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.mystyle {
    font-size: 24px;
    line-height: 1.5;
    margin: 20px 0;
}

.mystyle a {
    color: #0ff;
}

.mystyle a:hover {
    color: #fff;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    font-size: 48px;
    margin: 50px 0;
}

nav a {
    display: inline-block;
    padding: 10px 20px;
    margin: 0 10px;
    border: 2px solid #0ff;
    border-radius: 5px;
    color: #0ff;
    transition: color 0.2s ease-in-out, background-color 0.2s ease-in-out;
}

nav a:hover {
    color: #000;
    background-color: #0ff;
}