How to update background image using upload button on the same page?

Question

As like profile picture update

Answer 1

Can you please reply with the code? I am struck in my project. I am new to web design.

Answer 2

#back input {
width: 130px;
height: 130px;
background: url(img/back_default.png);
border: hidden;
}

#back input:active {
background-image: url(img/back_default-active.png);
}

Answer 3

Learn JavaScript. with JS very easy