index.scss

.target > .dropdown-wrapper {
  display: inline
}

.dropdown-wrapper {
  .item-select-dropdown {
    overflow: hidden;
    display: inline-block;
    cursor: pointer;

    input[type="radio"] + label {
      display: none;
    }

    input {
      display: none;
    }

    input[type="radio"]:checked + label {
      display: inline-block;
      pointer-events: none;
    }

    hr {
      display: none;
    }

    br {
      display: none;
    }
  }

  .spacer {
    width: 0px;
    height: 0px;
    display: inline-block;
  }

  .clicker {
    display: none;
  }
}

.dropdown-wrapper.open {
  .item-select-dropdown {
    height: 400px;
    width: 380px;
    overflow-y: scroll;
    z-index: 10;
    position: absolute;
    background: grey;
    cursor: default;

    input[type="radio"] {
      display: none;
    }

    input[type="radio"] + label {
      display: inline-block;
      pointer-events: auto;
      width: 32px;
      height: 32px;
      border: 2px solid orange;
      border-radius: 5px;
      margin: 2px;
      padding: 2px;
    }

    input[type="radio"] + label:hover {
      background: white;
    }

    br {
      display: inline;
    }

    hr {
      display: block;
    }
  }

  .clicker {
    display: block;
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 5;
    top: 0px;
    left: 0px;
    cursor: default;
  }

  .spacer {
    width: 32px;
    height: 32px;
  }

}