A pretty weird behavior which I've noticed with Opera 10.53. I have a page with a big registration form which is based on list items with legend and inputs inside. For some particular sections I need more space between list items (each list item consists of label and input component) and I've used margins between the list items. When I load the page it seems that the margins are not rendered (like there are no margins), also the CSS definitions in Dragonfly show that margins are not there. The weird issue is when I refresh the page (F5) then every margin gets loaded and page looks as it is expected.
I have cleared cookies, history etc. and tried again - the same problem. Always when I load the page margins are not rendered and after F5 they appear. Do you know any potential reason for this or anything which may solve this weird issue?