.btn {
    display: inline-block;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;

    padding: .375rem .75rem;
    font-size: 1rem;
    border-radius: .25rem;
    transition: color .15s ease-in-out , background-color .15s ease-in-out , border-color .15s ease-in-out , box-shadow .15s ease-in-out
}

@media (prefers-reduced-motion:reduce) {
    .btn {
        transition: none
    }
}