client/app/components/queries/editor-components/databricks/DatabricksSchemaBrowser.less

.databricks-schema-browser {
  .schema-control {
    .database-select-open .ant-input-group-addon {
      background-color: #fff;

      .ant-select-selection-selected-value {
        visibility: hidden;
      }
    }

    .ant-input-wrapper {
      table-layout: fixed; // antd uses display: table, so this is needed for % units

      .ant-input-group-addon {
        width: 40%;
        padding: 0;
        border-bottom-left-radius: 0;

        .ant-select {
          width: 100%;

          &.ant-select-focused .ant-select-selection {
            color: inherit;
          }
        }
      }

      .ant-input {
        border-bottom-right-radius: 0;
      }
    }
  }

  .schema-list-wrapper {
    height: 100%;
    border: 1px solid #eaeaea;
    border-top: 0;
    border-radius: 0 0 4px 4px;
    margin-bottom: 20px;
  }
}

.databricks-schema-browser-db-dropdown {
  width: auto !important;
  max-width: 50vw;
}