Can I set an opacity only to the background image of a div?

Question

Let\'s say I have

Hi there

I want to put a background-image and give it an opacit

Answer 1

css

div { 
    width: 200px;
    height: 200px;
    display: block;
    position: relative;
}

div::after {
    content: "";
    background: url(image.jpg); 
    opacity: 0.5;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    position: absolute;
    z-index: -1;
}

html

 put your div content