Question

Below css sets an individual background on two divs; the images repeat themselves if they do not fit into the div size.

How can I stretch the images using css to fit into space required by div ?

<style type="text/css">   
#contentMain {  
  margin-bottom: 5%; 
  margin-top: 10%;
  margin-left: 10%;
  margin-right: 10%;
  background: url( /jQuery/mypage/img/background1.png )
}  
#page1 {    
  background: url( /jQuery/mypage/img/background2.png )  
} 
</style> 

Answer 1

Answer

You have multiple options:

1. background-size: 100% 100%; – image gets stretched (aspect ratio may be preserved, depending on browser)
2. background-size: contain; – image is stretched without cutting it while preserving aspect ratio
3. background-size: cover; – image is completely covering the element while preserving aspect ratio (image can be cut off)

/edit: And now, there is even more: https://alligator.io/css/cropping-images-object-fit

Demo on Codepen

Update 2017: Preview

Here are screenshots for some browsers to show their differences.

Chrome

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Firefox

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Edge

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IE11

Takeaway Message

background-size: 100% 100%; produces the least predictable result.

Resources

• https://alligator.io/css/cropping-images-object-fit