paragraphs-features.add-in-between.css in Paragraphs Features 2.x

/*
 * 1. "+ Add" button is left aligned and we want it in middle.
 */
.js .paragraphs-features__add-in-between__wrapper .paragraphs-features__add-in-between__button {
  margin: 0 auto; /* 1 */
}
@media screen and (max-width: 600px) {
  /*
   * 1. The button text is not vertically aligned for mobile view.
   */
  .js .paragraphs-features__add-in-between__wrapper .paragraphs-features__add-in-between__button {
    padding-top: 5px; /* 1 */
  }
}