html 
{
height: 100%;
}

body
{
background-size: 100%;
background-color: black;
height: 100%;
margin: 0;
padding: 0;
}

#page-table 
{
height: 100%;
width: 100%;
border-collapse: collapse;
text-align: center;
}

#page-td 
{
height: 100%;
padding: 0;
vertical-align: middle;
}

#box1
{
background:url(design/boxB.png) repeat fixed center center;
position: relative;
padding: 20px;
margin-left: auto;
margin-right: auto;
margin-top: auto;
margin-bottom: auto;
width: 800px;
}

#contenu1
{
position: relative;
width: 800px;
height: 400px;
overflow: auto;
}

h2
{
text-align: center;
font-family: arial;
font-size: 24px;
color: white;
margin-top: 10px;
}

p
{
font-family: arial;
font-size: 16px;
color: white;
text-align: center;
list-style-type: none;
}