.popbox {
    margin: 0px auto;
    text-align: center;
    position: relative;
}

.collapse {
    position: relative;
}

.open {
    background: #DDD;
    border: solid 1px #FFF;
    border-radius: 5px;
    box-shadow: 0px 0px 5px #CCC;
    background: -webkit-gradient(linear, left top, left bottom, from(#f4f4f4), to(#e8e8e8));
    background: -moz-linear-gradient(top, #f4f4f4, #e8e8e8);
    background: linear-gradient(top, #f4f4f4, #e8e8e8);
    padding: 8px;
}

.box {
    display: block;
    display: none;
    background: #FFF;
    border: solid 1px #BBBBBB;
    border-radius: 5px;
    box-shadow: 0px 0px 15px #999;
    position: absolute;
}

.box a.close {
    color: red;
    font-size: 12px;
    font-family: arial;
    text-decoration: underline;
}

.arrow {
    width: 0;
    height: 0;
    border-left: 11px solid transparent;
    border-right: 11px solid transparent;
    border-bottom: 11px solid #FFF;
    position: absolute;
    left: 1px;
    top: -10px;
    z-index: 1001;
}

.arrow-border {
    width: 0;
    height: 0;
    border-left: 11px solid transparent;
    border-right: 11px solid transparent;
    border-bottom: 11px solid #BBBBBB;
    position: absolute;
    top: -12px;
    z-index: 1000;
}