react-select-element.css

  body {
    font-family: arial, helvetica, sans-serif;
  }

  .react-select-element {
    font-size: .75rem;
    cursor: default;
    user-select: none;
    margin: 2px 0;
    position: relative;
  }

  .react-select-element .selected-option {
    padding: 2px 8px;
    background-color: white;
    border: 1px solid #ccc;
    margin: 0;
    border-radius: 4px;
  }

  .react-select-element.disabled .selected-option {
    border-color: #ebebeb;
    color: #808080;
  }

  /*
    Default focus outline is bobbins
    In Chrome, there's a margin between the element and the outline
    In FF, the outline is dashed
  */
  .react-select-element .selected-option:focus {
    outline: none;
    box-shadow: 0px 0px 4px 2px rgba(59, 153, 252, 1);
  }

  .react-select-element ul {
    position:absolute;
    margin: -1px 0 0;
    width: 100%;
    padding: 8px 0;
    background-color: #f0f0f0;
    border: 1px solid #aaa;
    border-radius: 4px;
    box-shadow: 10px 10px 30px 0px rgba(0, 0, 0, 0.25);
    display: none;
    z-index: 1;
  }

  .react-select-element ul.active {
    display: block;
  }

  .react-select-element li {
    display: block;
    list-style-type: none;
    padding: 0 1rem;
    cursor: default;
  }

  .react-select-element li.active {
    background-color: #3991fc;
    color: white;
  }