本课内容目前为英文。
Pictures done right
On a phone with a slow connection, images are most of what a page downloads. A few attributes decide whether they help or hurt: who can understand them, how fast they arrive and whether the page jumps while they load.
本课内容目前为英文。
On a phone with a slow connection, images are most of what a page downloads. A few attributes decide whether they help or hurt: who can understand them, how fast they arrive and whether the page jumps while they load.