[RUBY] Use images in Rails

Use images in Rails.

Put the image file you want to use in app / assets / images. In the html.haml file where you want to use the image


= image_tag src= "/assets/sample.png ", size: "50x50"

Specify the background image with css in Rails.

Put the image file used as the background in app / assets / images. And in the css file


background: image-url("sample.png ");
background-size: cover;

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