.btn-group-xs > .btn, .btn-xs {
    padding  : .25rem .4rem;
    font-size  : .875rem;
    line-height  : .5;
    border-radius : .2rem;
}
.form-control-xs {
    height: calc(1.5rem + 2px);
    padding: .125rem .25rem;
    font-size: .775rem;
    line-height: 1.25;
    border-radius: .1rem;
}

.table td{
    vertical-align: middle;
}