webpack-bootstrap-ui-kit/src/scss/_typography.scss

h1,
h2,
h3,
h4,
h5,
h6,
.h1,
.h2,
.h3,
.h4,
.h5,
.h6 {
    color: $dark;
}

.bg-dark {
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    .h1,
    .h2,
    .h3,
    .h4,
    .h5,
    .h6,
    .typography,
    a {
        color: $white;
    }
}

ul:last-child,
p:last-child {
    margin-bottom: 0;
}

.typography {
    @include clearfix;

    @import './types/editor';

    > *:last-child {
        margin-bottom: 0;
    }
}