.details {
border-radius: 30px;
  background-color: #fff;

}
.details-summary {
  position: relative;
  display: block;
border-radius: 30px;
  margin-top:20px;
  padding: 20px;
  color: #000;
  font-size: 24px;
  font-weight: bold;
  text-align: center;
  background-color: #fff;

  &:hover {
    cursor: pointer;
    opacity: 0.8;
  }
  .btn {
    position: absolute;
    top: 37%;
    right: 10%;
    width: 18px;
    height: 18px;

    transform-origin: center center;
    transition-duration: 0.2s;

    &:before,
    &:after {
      content: "";
      background-color: #000;

      width: 18px;
      height: 4px;
      position: absolute;
      top: 7px;
      left: 0;
      transform-origin: center center;
    }
    &:before {
      width: 4px;
      height: 18px;
      top: 0;
      left: 7px;
    }
  }
  &.is-active {
    .btn {
      -webkit-transform: rotate(-180deg);
      transform: rotate(-180deg);

      &:before {
        content: none;
      }
    }
  }
}

.details-summary::-webkit-details-marker {
  display: none;

}