You did not do anything wrong here, it will any other thing that is overriding the image size. You can check this working fiddle. ... <看更多>

... 多數人應該都是先想到使用background-image + background-size: cover。 ... object-position 的預設值是50% 50%，也就是置中的意思，有可以更換 ... ... <看更多>

The "best" works html <img> and legacy attribs width +/- height ...  ... ... <看更多>