.editor-styles-wrapper blockquote.wp-block-quote {
  position: relative;
  padding: .5rem 1.5rem;
  border: 0;
  background: none;
  font-size: 1.5rem;
  font-weight: 500;
}

.editor-styles-wrapper blockquote.wp-block-quote:before {
  content: '';
  display: block;
  width: .75rem;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  border-top-left-radius: .75rem;
  border-bottom-left-radius: .75rem;
  background: #E3000B;
}

.editor-styles-wrapper blockquote.wp-block-quote p:first-child {
  margin-top: 0;
}

.editor-styles-wrapper blockquote.wp-block-quote p:last-of-type {
    margin-bottom: 0;
}

.editor-styles-wrapper blockquote.wp-block-quote  cite {
  font-size: 1rem;
  font-style: normal;
  font-weight: normal;
}