background image with overlay css

Question

How I design background image with overlay in CSS like this example image.

here the code. i want to add tour class to background image and overlay effect. <

Answer 1

you can use this code

HTML

CSS

#wrapper {
    position: relative;
}
.overlay {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(0,0,0,.5);
    z-index: 999;
}