.c_rich-text {
  margin:0;
}
.c_rich-text__content-box p {
  line-height: calc(34/16);
}

@media screen and (max-width: 740px) {
  .c_rich-text__content-box {
    margin-inline-start: 0;
    margin-inline-end: 0;
  }
  .c_rich-text__content-box p {
    font-size: 12px;
    line-height: calc(22/12);
  }
}