📄 style.css

.wp-block-quote {
  box-sizing: border-box;
  overflow-wrap: break-word;
}
.wp-block-quote.is-style-large:where(:not(.is-style-plain)), .wp-block-quote.is-large:where(:not(.is-style-plain)) {
  margin-bottom: 1em;
  padding: 0 1em;
}
.wp-block-quote.is-style-large:where(:not(.is-style-plain)) p, .wp-block-quote.is-large:where(:not(.is-style-plain)) p {
  font-size: 1.5em;
  font-style: italic;
  line-height: 1.6;
}
.wp-block-quote.is-style-large:where(:not(.is-style-plain)) cite,
.wp-block-quote.is-style-large:where(:not(.is-style-plain)) footer, .wp-block-quote.is-large:where(:not(.is-style-plain)) cite,
.wp-block-quote.is-large:where(:not(.is-style-plain)) footer {
  font-size: 1.125em;
  text-align: right;
}
.wp-block-quote > cite {
  display: block;
}