.css_fld_bl1_label { }
.css_fld_bl1_line {text-align:center;}
.css_fld_bl1_obj {text-align:center;}
.css_usuario_label {text-align:center;}
.css_usuario_line {text-align:center;}
.css_usuario_obj {text-align:center;}
.css_clave_label {text-align:center;}
.css_clave_line {text-align:center;}
.css_clave_obj {text-align:center;}