body
{
    color: white ;
    padding: 0px;
text-align: center;
    vertical-align:top;
background-color:grey;
top: 0;left: 0;
}
div.top
{
    background-color:silver;top:0;left:0;right:0;margin: 0;padding: 0;
height: 15%;width: 100%;position: fixed;
}
div.bot
{
    background-color:silver;bottom:0;left:0;position: fixed;
height: 15%;width: 100%;
}
div.mid
{
    background-color:black;right:0;left:0;position: fixed;top:15%;bottom:5%;overflow: none;
overflow-y: auto;
}
iframe{
width:100%;
height:100%;
background-color: red;
}
button#bmenu{

position: fixed;
top: 25;
left:50;
z-index:99;
}
table.menu{
padding:0;
position:fixed;
top:0;
left:0;
height:100%;
width:100%;
text-align: center;
}
td.space{
height:100;
position:fixed;
top:0;
left:0;
}
td.set{
left:15;
position:fixed;
top:100;
bottom:100;
overflow-y:auto;
border-style:inset;

border-width:5;
}

td.logout{
background-color:black;
position:relative;

bottom:0px;
height:100;
left:0px;
}
#menu {
background-color:silver;
}
td.menuspan{
background-color:green;
}
button {
border-style: outset;
border-color: red;
}