body{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 0.8em;
    width:50em;
    margin: auto;
}
hr {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
}