.treD-navbar {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: relative;
  z-index: 90;
  top: calc(100% - 40px);
  left: 0;
  width: 100%;
  height: 40px;
  background: rgba(61, 61, 61, 0.5);
  -webkit-transition: bottom ease-in-out .1s;
  transition: bottom ease-in-out .1s; }
  .psv-navbar--open {
    bottom: 0; }
  .psv-navbar,
  .psv-navbar * {
    -webkit-box-sizing: content-box;
            box-sizing: content-box; }