css show image full screen code example
Example 1: set background image full screen css
#mainBackground{
width: 100%;
height: 100%;
max-height: 100%;
margin: 0;
padding: 0;
background-image: url("https://images.unsplash.com/photo-1487058792275-0ad4aaf24ca7?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=750&q=80");
background-size:100% 100%;
background-repeat: no-repeat;
}
html, body {
height: 100%;
margin: 0;
padding: 0;
}
Example 2: HTML Image full screen width
<!DOCTYPE html>
<html>
<head>
<style>
body{ margin:0px }
div#middle > div{ float:left; width:100%; }
div#middle > div > div > img{ width:100%; }
</style>
</head>
<body>
<div id="middle">
<div>
<div>
<img src="example.jpg" alt="example">
</div>
</div>
</div>
</body>
</html>