.holder {
    width:auto;
    padding-bottom:0px;
}
.holder div {
    width:auto;
}
.holder .header {
  	opacity: 0.6;
    background-color:#ffffff;
    cursor: pointer;
    font-weight: bold;
    padding:25px;
    margin:10px;
    text-align: center;
    font-size : 1.15em; /* 28 / 16 */

  /* Theoretically for IE 8 & 9 (more valid) */
  /* ...but not required as filter works too */
  /* should come BEFORE filter */
  -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)"; // IE8

  /* This works in IE 8 & 9 too */
  /* ... but also 5, 6, 7 */
  filter: alpha(opacity=50); // IE 5-7
  

}
.holder .content {
    display: none;
    padding : 10px 25px 25px 25px;
    background-color:#f1f1f1;

}