body {
background-color: darkslategray;
color: whitesmoke;
font-size: 20px;
line-height: 1.6;
}

a {
color: turquoise;
}

th, td {
border: 3px double silver;
background-color: slategray;
color: white;
padding: 0 1.5em;
}

.div1 {
margin: 20px 0;
background-color: dimgray;
width: 90%;
max-width: 1000px;
}