How to keep <select> dropdown open to test styles on <option> in firebug?
问题 How to keep <select> dropdown open to test styles on in firebug? I'm trying to styling <option> <select class="select"> <option selected>Select</option> <option>Blue</option> <option >Red</option> <option>Green</option> <option>Yellow</option> <option>Brown</option> </select> But every time i need to open and see what's happening after changing css in firebug. I know it doesn't take much time to open an see the result. But I'm just curious to know if there is any trick to keep the dropdown