【CSS】背景屬性--調整你的位置與大小

Four techniques are explored on accomplishing a full page background image that conforms to our exceptions: no white space, scales as needed ...

The background-size CSS property lets you resize the background image of an element, overriding the default behavior of tiling the image at ...

3 天前 · The background-size CSS property sets the size of the element's background image. The image can be left to its natural size, stretched, or ...

background-size 是對背景圖片設定其尺寸，所以必須要搭配background-image 來使用，所以當你沒有設定background-image 的時候是沒有作用的，此外background-color 也無法使用 ...

cover：background-size: cover;. 將圖片填滿整個容器，若圖片小於容器且像素過低時，容易造成失真。 contain：background-size: contain;. 將圖片縮小 ...

By setting the background size to cover you are giving the browser the prerogative to adjust the image until it completely covers the area; ...

Use the bg-cover utility to scale the background image until it fills the background layer, cropping the image if needed.

cover主要用於背景圖小於所在的內容，而背景圖又不適合使用repeat，此時就可以採用cover的方式，使背景圖放大至內容的大小，但此方法容易使背景圖因放大而失真 ...

The background-size property specifies the size of the background images. There are four different syntaxes you can use with this property: the keyword syntax ( ... Try it Yourself · Show demo · Block-size