hey,
Please goto
wp-admin > appearance > customize > custom css > paste these code here.
.question_wrapper.loaded .result {position: absolute !important; right: 50px !important; top: 50px !important;}
.question_wrapper.loaded .incorrect, .question_wrapper.loaded .result {background: #ff000000 !important;}
.question_wrapper.loaded .correct, .question_wrapper.loaded .incorrect {transform: scale(0.6) !important;}
Refer:
http://prntscr.com/lhqucc
it will shift the cross marking away from the question and also decreases the size.