select2/src/scss/_multiple.scss

.select2-container {
  .selection .multiple-select {
    box-sizing: border-box;

    cursor: pointer;
    display: block;

    min-height: 32px;

    user-select: none;
    -webkit-user-select: none;

    .rendered-selection {
      display: inline-block;
      overflow: hidden;
      padding-left: 8px;
      text-overflow: ellipsis;
    }
  }

  .select2-search-inline {
    float: left;

    input {
      border: none;
      font-size: 100%;
      margin-top: 5px;
    }
  }
}