.badge {
    display: inline-block;
    padding: .25em .4em;
    font-size: 75%;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: .25rem;
}
.badge-secondary {
    color: #fff;
    background-color: #6c757d;
}
.badge-success {
    color: #fff;
    background-color: #28a745;
}
.badge-danger {
    color: #fff;
    background-color: #dc3545;
}
.badge-warning {
    color: #212529;
    background-color: #ffc107;
}
.badge-info {
    color: #fff;
    background-color: #17a2b8;
}
.badge:empty {
  display: none;
}

.btn .badge {
  position: relative;
  top: -1px;
}