.wp-block-columns.is-style-checkmark_left,
.wp-block-columns.is-style-checkmark_right {
  position: relative;
}
.wp-block-columns.is-style-checkmark_left::after,
.wp-block-columns.is-style-checkmark_right::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, 0);
  background-image: url("data:image/svg+xml,%3C%3Fxml version='1.0' encoding='UTF-8'%3F%3E%3Csvg id='Ebene_1' xmlns='http://www.w3.org/2000/svg' version='1.1' viewBox='0 0 100 83'%3E%3Cpath fill='%23f3f2fe' d='M66.7,18.3h0s-31,20.4-31,20.4c-1.4.9-3.3.9-4.7,0L6.6,22.7c-2.8-1.9-6.6.2-6.6,3.6v33.3c0,1.4.7,2.8,1.9,3.6l29.1,19.2c1.4.9,3.3.9,4.7,0l31-20.4,31.4-20.7c1.2-.8,1.9-2.1,1.9-3.6V4.3c0-3.4-3.8-5.4-6.6-3.6l-26.7,17.6Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  z-index: -1;
  transition: all 0.3s ease;
}
.wp-block-columns.is-style-checkmark_left::after {
  width: calc(100vw * 0.9);
  height: calc(83vw * 0.9);
  max-width: calc(1000px * 0.7);
  max-height: calc(830px * 0.7);
  transform: translate(-50%, -50%);
}
.wp-block-columns.is-style-checkmark_right::after {
  width: calc(100vw * 0.7);
  height: calc(83vw * 0.7);
  max-width: calc(1000px * 0.9);
  max-height: calc(830px * 0.9);
}

@media only screen and (min-width: 600px) {
  .wp-block-columns.is-style-checkmark_left::after {
    width: calc(100vw * 0.75);
    height: calc(83vw * 0.75);
  }
}

@media only screen and (min-width: 782px) {
  .wp-block-columns.is-style-checkmark_left::after {
    width: calc(100vw * 0.6);
    height: calc(83vw * 0.6);
    transform: translate(-80%, -50%);
  }
  .wp-block-columns.is-style-checkmark_right::after {
      transform: translate(-20%, -60%);
  }
}

@media only screen and (min-width: 1200px) {
  .wp-block-columns.is-style-checkmark_left::after {
    transform: translate(-70%, -50%);
  }
}