How to stretch an image (Img tag) to the full width of the screen without changing the height?

Question

css

Need to stretch the image in the img tag to the full width (centered) while maintaining its original height? Those. not the whole part is shown in width. but only the one that fits the screen size.
Those. same as when using background url() center no-repeat;

Answer 1

set the parent to overflow: hidden;
And the picture is the right size in pixels.