.wp-block-gutenberg-original-block-heading-tag-red{
  margin-top: 3rem !important;
  background: #fff1f1;
  border-left: 0.3rem solid #e80101;
  border-radius: 0;
  letter-spacing: 0.06em;
  border-bottom: 0 solid transparent;
  padding: 1em 1em 1em 1.5em;
  font-family: "Helvetica Neue",
  "Helvetica",
  "Hiragino Sans",
  "Hiragino Kaku Gothic ProN",
  "Arial",
  "Yu Gothic",
  "Meiryo",
  sans-serif;

}