html {
    max-width: 900px;
    margin-left: 35px;
    margin-right: 20px;
}

h1 {
    margin-top: 30px;
    margin-bottom: 30px;
    text-align: center;
    font-size: 30px;
    letter-spacing: 4px; 
    font-weight: normal;
    font-family: sans-serif;
    color: #003060;
}

h2 {
    font-size: 20px;
    font-weight: normal;
    font-family: sans-serif;
    color: #003060;
}

h3 {
    font-size: 18px;
    font-weight: normal;
    font-family: sans-serif;
    color: #003060;
}

h4 {
    font-size: 15px;
    font-weight: bold;
    font-family: sans-serif;
    color: #003060;
}

p {
    text-align: justify;
    font-size: 15px;
}

pre {
    margin-left: 15px;
    font-size: 15px;
}

ul {
    padding: 10px;
    font-size: 15px;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
    font-weight: bold;
    color: #306090;
}

a:hover {
    color: #003060;
}
