kero/snippets/examples/dt/datatable/label/widget.css

.u-tag {
    display: inline-block;
    line-height: 22px;
    height: 22px;
    padding: 0 8px;
    border-radius: 6px;
    background: #f3f3f3;
    font-size: 12px;
    -webkit-transition: all .3s cubic-bezier(.78,.14,.15,.86);
    transition: all .3s cubic-bezier(.78,.14,.15,.86);
    vertical-align: middle;
    opacity: .85;
    overflow: hidden;
    margin: 2px 4px 2px 0;
    color: #666;
}

.u-tag:hover {
	opacity: 1;
}

.u-tag-text a {
	color: inherit;
    outline: none;
    text-decoration: none;
}

.u-tag .fa-remove {
	cursor: pointer;
}