rd, se: reverted use of xhtml required attribute
rd, se: reverted use of xhtml required attribute

aldreth/web-toolkit,image-tester/web-toolkit,image-tester/web-toolkit,skyglobal/web-toolkit,skyglobal/web-toolkit,aldreth/web-toolkit,aldreth/web-toolkit,image-tester/web-toolkit,skyglobal/web-toolkit