.expandable .collapse,
.expandable .expand {
    display: inline-block;
    min-width: 1.5em;
    padding-right: 0.5em;
    text-align: center;
    vertical-align: middle;
}

.expandable .icon:before {
    cursor: pointer;
}

.expandable .parentCollapsed {
    display: none;
    /*background-color: red;*/
}