图片超过固有图像大小

Question

I am trying to improve my page using picture html5 element.

When i am use default img tag it will sizing by intrinsic size default. But when i am use picture size it will sizing over intrinsic size.

How can i fix that?

over intrinsic size picture tag

Answer 1

The problem was i dont mark the size attribute on source tag,so browsers have no any information about image width