* {
    box-sizing: border-box;
}

blockquote {
    border-left: 1px solid #c3c9c9;
}

blockquote, blockquote p {
    font-size: 1rem;
}

cite:before {
    content: '\2014 \00A0';
}

dt {
    font-weight: bold;
}

dd {
    margin-left: 0;
}

* {
    box-sizing: border-box;
}

blockquote {
    border-left: var(--border-width) solid var(--border-color);
}

blockquote, blockquote p {
    font-size: 1rem;
}

cite:before {
    content: '\2014 \00A0';
}

dt {
    font-weight: bold;
}

dd {
    margin-left: 0;
}

Use vars in blockquote border
Use vars in blockquote border
