body {
text-align:center;
font: 10px Arial, Helvetica, sans-serif; text:#003399; 
}

a:link    { color:#000080; text-decoration:none; font-weight:none;}
a:visited { color:#000080; text-decoration:none; font-weight:none;}
a:hover   { color:#000080; text-decoration:none; font-weight:bold;}
a:active  { color:#000080; text-decoration:none; font-weight:none;}

.tablas {font-family:Arial; font-size:12px; color:#000080; background:#FFFFFF;}

.titulos {font-family:Arial; font-size:12px; color:#FFFFFF; background:#3399CC;}

.celdas_b {background:#E4E8F1;}
.celdas_y {background:#FFFFD5;}


.input{background:url("../imagenes/textbox_izq.png") no-repeat;padding:0 0 0 4px;float:left;margin:1px;float:left;}
.input span{background:url("../imagenes/textbox_der.png") no-repeat right top;padding:1px 3px 3px 0;float:left;}
.input span input{background:#3399CC;color:#FFFFFF;font-weight:bold;border:0;}

.input_y{background:url("../imagenes/textbox_izq_y.png") no-repeat;padding:0 0 0 4px;float:left;margin:1px;float:left;}
.input_y span{background:url("../imagenes/textbox_der_y.png") no-repeat right top;padding:1px 3px 3px 0;float:left;}
.input_y span input{background:#FFFF00;color:#3399CC;font-weight:bold;border:0;}

.col_head{background:url("../imagenes/col_head_izq.jpg") no-repeat;padding:0 0 0 9px;float:left;margin:1px;float:left;}
.col_head span{background:url("../imagenes/col_head_der.jpg") no-repeat right top;padding:1px 9px 3px 0;float:left;}