.form_izq {float:left;margin:6px 0px 6px 0px;text-align:right;width:39%;}
.form_der {float:left;margin:6px 0px 6px 0px;text-align:left;width:59%;}
.form_ancho {clear:both;padding:15px 0px 20px 0px;text-align:center;width:100%;}
.input_text {color:#999;font:11px tahoma,sans-serif;padding:0px 2px 0px 3px;width:145px;}
.textarea {color:#999;font:11px tahoma,sans-serif;height:46px;padding:0px 2px 0px 3px;width:190px;}
.colizq {float:left;margin:6px 0px 6px 0px;padding:15px 0px 20px 0px;text-align:left;width:50%;}
.colder {float:left;margin:6px 0px 6px 0px;padding:15px 0px 20px 0px;text-align:left;width:50%;}