.beefup {
    margin: 1em 0;
    border: 1px solid #ddd;
    border-radius: 4px;
  }
  .beefup:hover {
    border-color: #ccc;
  }
  .beefup:first-child {
    margin-top: 0;
  }
  .beefup__head, .beefup__body {
    padding: 10px 20px;
  }
  .beefup__head {
    cursor: pointer;
    position: relative;
    margin: 0;
    padding-right: 50px;
  }
  button.beefup__head, .beefup__head > button {
    cursor: pointer;
    display: block;
    width: 100%;
    background: none;
    border: 0;
    font: inherit;
    text-align: inherit;
  }
  button.beefup__head[aria-disabled], .beefup__head > button[aria-disabled] {
    cursor: default;
    outline: 0;
  }
  
  .beefup__head > button {
    position: relative;
    z-index: 1;
    margin: -10px -50px -10px -20px;
    padding: inherit;
    width: calc(100% + 70px);
    background: inherit;
    border: inherit;
  }
  .beefup__head::after {
    transition: transform 0.2s ease-out;
    content: "";
    transform: translate(0, -50%) rotate(45deg);
    position: absolute;
    top: 50%;
    right: 20px;
    z-index: 0;
    margin-top: -2px;
    padding: 3px;
    border-width: 0 2px 2px 0;
    border-style: solid;
    color: #ccc;
  }
  .beefup.is-open > .beefup__head::after {
    transform: translate(0, -50%) rotate(225deg);
    margin-top: 2px;
  }