.custom-select-container {
    box-sizing: border-box;
    display: inline-block;
  }
  .custom-select-container * {
    box-sizing: border-box;
  }
  .custom-select-container.is-disabled {
    opacity: .333;
  }
  .custom-select-opener {
    background-color: transparent;
    border-radius: 3px;
    display: inline-block;
    cursor: pointer;
    width: auto;
    background-size: 15px auto;
  }
  
  .custom-select-container select {
    visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
  }
  .custom-select-panel {
    transition: opacity .5s ease;
    overflow: hidden;
    background-color: #fff;
    position: absolute;
    top: 100%;
    z-index: 99999;
    width: 100%;
    visibility: hidden;
    opacity: 0;
  }
  
  .custom-select-container.is-open .custom-select-panel {
    opacity: 1;
    visibility: visible;
  }
  .custom-select-option {
    padding: 0.5em;
    font-size : 18px;
    color : #393939;
  }
  .custom-select-option.has-focus {
    background-color: LightBlue;
  }
  .custom-select-option.is-selected::before {
    content: "✔";
    padding-right: 0.5em;
  }
  .custom-select-optgroup > .custom-select-option {
    padding-left: 2em;
  }
  .custom-select-optgroup::before {
    content: attr(data-label);
    display: block;
    padding: 0.5em;
    color: #888;
  }