.col-vertical-center {
    display: flex;
    align-items: center;
}

.plot-div {
    height: 600px;
}

.plot-col {
    padding: 0;
    min-width: 0;
}

/* full width play / pause buttons */
.btn-group-justified {
  display: table;
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
}
.btn-group-justified .btn,
.btn-group-justified .btn-group {
    float: none;
    display: table-cell;
    width: 1%;
}
.btn-group-justified .btn .btn,
.btn-group-justified .btn-group .btn {
    width: 100%;
}
.btn-group-justified .btn .dropdown-menu,
.btn-group-justified .btn-group .dropdown-menu {
    left: auto; }