*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family: Arial, Helvetica, sans-serif;
    background-image: url("https://images.unsplash.com/photo-1506744038136-46273834b3fb");
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: white;
}

header{
    overflow: hidden;
    background: rgba(0,0,0,0.7);
    padding: 20px;
}

#titulo{
    white-space: nowrap;
    position: relative;
    color: #7CFC00;
    font-size: 2.5rem;
    text-shadow: 2px 2px 5px black;
}

.contenido{
    width: 85%;
    margin: 30px auto;
    background: rgba(0,0,0,0.75);
    padding: 25px;
    border-radius: 10px;
}

h2{
    color: #90EE90;
    margin-top: 20px;
    margin-bottom: 10px;
}

p, li{
    line-height: 1.8;
}

ul{
    margin-left: 25px;
}

table{
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

table, th, td{
    border: 2px solid white;
}

th{
    background-color: #228B22;
    padding: 12px;
}

td{
    padding: 12px;
    background-color: rgba(255,255,255,0.15);
}

.video{
    text-align: center;
    margin-top: 20px;
}

iframe{
    max-width: 100%;
    border-radius: 10px;
}