http://jsfiddle.net/xLj77yg9/

Is it possible for the next code to take the content area to occupy, for example, 500 pixels in the center, but a semitransparent layer was applied to half of the image, which stretches 50% of the image.

Alternatively, you can work in Photoshop with the image. but I would like to implement it on css

as needed

    1 answer 1

    So? http://jsfiddle.net/5pfbqgcz/