/* Estilos generales */
body {
    font-family: Arial;
    background-color: #fff;
    color: #000;
    margin: 0;
    padding: 10;
}

header {
    color: #000000;
    text-align: center;
}

h1 {
    font-size: 25px;
}

nav ul {
    list-style: none;
    padding: 0;
    text-align: center;
}

nav li {
    display: inline;
    margin-right: 20px;
}

nav a {
    color: #fff;
    text-decoration: none;
}

main {

    padding: 20px;
}

h2 {
    font-size: 20px;
}

p {
    font-size: 14px;
    line-height: 1.5;
}

a {
    color: #000;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ol, ul {
    font-size: 14px;
    font-family: Arial;
}

ol.abc-list {
    list-style: none;
    counter-reset: list-counter;
}

ol.abc-list li {
    counter-increment: list-counter;
    margin-bottom: 10px;
}

ol.abc-list li::before {
    content: counter(list-counter, lower-alpha) ")";
    margin-right: 5px;
}

span {
    text-decoration: underline;
}