h1{
    font:  20px IRANSans;
}

.normal{
font-family:tahoma;    
color:#000000;
font-size:13px;
}

.big{
font-family:tahoma;
color:#000000;
font-size:16px;

}

.verybig{
color:#000000;
font-size:20px;
font-family:tahoma;

}

.yekannormal{
font:13px IRANSans;
color:#000000;

}

.yekanbig{
font:16px IRANSans;
color:#000000;

}

.yekanverybig{
font:20px IRANSans;
color:#000000;
}