.collapsee{
    display:none ;

}

 .collapser:not(.unstyle):before {
    background: #23527C;
    color: #fff;
    position: relative;
    z-index: 1;
    float: left;
    margin: 0 1em 0 -2em;
    width: 1em;
    height: 1em;
    border-radius: 1em;
    content: '+';
    text-align: center;
    line-height: .9em;
}

.collapser:not(.unstyle).open:before { content: '–'; }

.collapsee:not(.unstyle):before {
    position: absolute;
    top: 0;
    bottom: 0;
    left: -.5em;
    width: 0;
    border-left: 1px solid #23527C;
    content: "";
}
