[data-toggle="collapse"][aria-expanded="true"] .collapse-show {
  display: none;
}

[data-toggle="collapse"][aria-expanded="false"] .collapse-hide {
  display: none;
}

[data-toggle="collapse"] .fa:before {
    content: "\f107";
}

[data-toggle="collapse"].collapsed .fa:before {
    content: "\f105";
}