body {
margin: 0;
text-align: center;
}

.main {
    width: 70%;
}

.content { 
    position: relative;
    float: none;
    width: auto;
    background-image: none;
    border-left: solid 1px black;
    border-right: solid 1px black;
}

.icontent { 
    background-image: none;
}

.sample {
    background-color: white; 
    border: solid 1px  black;
    font-size: 9pt;
    color: black;
    font-family: Arial;
    padding: 10px;
    margin: 0px;
}

li {
    white-space: normal;
    color: black;
    list-style: disc;
}

code {
    background-color: white; 
    font-family: Courier;
}

hr {
    color: black; 
    height: 1px; 
}
p.nb {font-size: smaller;}