What did you do? ================ 1. I've tested this bug again and again. 2. Others reflect it too 3.  What happened? ============== After scaling the page with transform:scale (CSS:body{transform:scale(1.2);), the HTML control: the sub item <select>label:<option> will be misplaced(<select><option>…</option> </select>). Other browsers: IE and chrome are normal. Just Firefox has the bug. Others reflect it too,for example: http://mozilla.com.cn/archiver/?tid-378512.html Please test and correct,thankyou!(2017-6-15) What should have happened? ========================== <option> is displayed within <select> Is there anything else we should know? ======================================

Please browse website:http://www.pre100.com/xxdt/,Using different browsers,click the drop-down button which go to page(Flip),You'll find out firefox error(The numbers in the drop-down list box misplaced),firefox Upgraded 54.0.1.the HTML control: the sub item <select>label:<option> will be misplaced(<select><option>…</option> </select>)

Please browse website:http://www.pre100.com/xxdt/ using different browsers,click the drop-down button which go to page(Flip),You'll find out firefox error(The numbers in the drop-down list box misplaced),firefox Upgraded 54.0.1.the HTML control: the sub item <select>label:<option> will be misplaced(<select><option>…</option> </select>)