.popover.iconpicker-popover .popover-content table tbody {
    max-height: 300px;
    overflow-y: auto;
    display: block;
}
    .popover.iconpicker-popover.bottom .arrow {
        left: 40px !important;
    }

    /*hiding the first child because its empty icon */
    .popover.iconpicker-popover .popover-content table tbody td:first-child {
        display: none;
    }

.table-icons td .btn-icon i {
    font-size: 1.2em;
}