/* poner el ancho en esta */ 
.caja7831_ {
display:block;
width:824px;
}
.caja7831_ *{
  display:block;
  height:1px;
  overflow:hidden;
  font-size:.01em;
  background:#eeeeee}
.caja7831_1{
  margin-left:3px;
  margin-right:3px;
  padding-left:1px;
  padding-right:1px;
  border-left:1px solid #f7f7f7;
  border-right:1px solid #f7f7f7;
  background:#f2f2f2}
.caja7831_2{
  margin-left:1px;
  margin-right:1px;
  padding-right:1px;
  padding-left:1px;
  border-left:1px solid #fdfdfd;
  border-right:1px solid #fdfdfd;
  background:#f1f1f1}
.caja7831_3{
  margin-left:1px;
  margin-right:1px;
  border-left:1px solid #f1f1f1;
  border-right:1px solid #f1f1f1;}
.caja7831_4{
  border-left:1px solid #f7f7f7;
  border-right:1px solid #f7f7f7}
.caja7831_5{
  border-left:1px solid #f2f2f2;
  border-right:1px solid #f2f2f2}
/* poner el ancho en esta */ 
.caja7831_fg{
  background:#eeeeee;
  width:824px;}