How can i resize for youtube thumnail in video moudle

hi all,

am using video module in my project am using view style is html list and Row style is node. if am using in view style grid and row style is fields i can change size of thumbnail but using view style is html list and Row style is node then i couldn't change field type then now How can i resize for youtube video thumnail in video moudle bec i contains very small size.