.bn 
{
border: 0;
}

.b1px
{
border-width:1px;
}

.mn 
{
margin:0;
}

.pn
{
padding:0;
}

.al
{
text-align:left;
}

.ac
{
text-align:center;
}

.ar
{
text-align:right;
}

.fl
{
float:left;
}

.fr
{
float:right;
}

.cb
{
clear:both;
}

.cl
{
clear:left;
}

.cn
{
clear:none;
}