Lazy Load for Background Images

Size
2,977 Kb
Views
22,264

How do I make an lazy load for background images?

I was searching around for a lazy-load alternative that would work with background images. I didn't have any luck so I came up with this. May work on making it my first jQuery plugin :). What is a lazy load for background images? How do you make a lazy load for background images? This script and codes were developed by Rosh Jutherford on 04 September 2022, Sunday.

Lazy Load for Background Images Previews

Lazy Load for Background Images - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Lazy Load for Background Images</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css"> <style> /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */ html { background: rgba(200,200,200,0.3); backface-visibility: hidden;
}
h1 { width: 100%; text-align: center; font-weight: 100; padding-top: 20px; color: rgba(200,200,200,1)
}
div { width: 300px; height: 300px; margin: 150px auto; position: relative;
}
div:after { content: ''; width: 100%; height: 100%; position: absolute; top: 0; left: 0; background: rgba(200,200,200,0.5); transition: opacity 0.5s ease;
}
.loaded { background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mrraktQTCS1st5lhmo1_1280.jpg"); background-position: center center; background-repeat: no-repeat; background-size: cover;
}
.loaded:nth-of-type(2){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mufr0mmWYW1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(3){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mr80snx79b1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(4){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mrraktQTCS1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(5){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_msuei3sMTo1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(6){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mtw7mhZsCe1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(7){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_msuei3sMTo1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(8){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mufrlh9WqW1st5lhmo1_1280.jpg);
}
div.loaded:after { opacity: 0;
} </style> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body> <h1>Lazy Load for background Images</h1>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div> <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Lazy Load for Background Images - Script Codes CSS Codes

html { background: rgba(200,200,200,0.3); backface-visibility: hidden;
}
h1 { width: 100%; text-align: center; font-weight: 100; padding-top: 20px; color: rgba(200,200,200,1)
}
div { width: 300px; height: 300px; margin: 150px auto; position: relative;
}
div:after { content: ''; width: 100%; height: 100%; position: absolute; top: 0; left: 0; background: rgba(200,200,200,0.5); transition: opacity 0.5s ease;
}
.loaded { background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mrraktQTCS1st5lhmo1_1280.jpg"); background-position: center center; background-repeat: no-repeat; background-size: cover;
}
.loaded:nth-of-type(2){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mufr0mmWYW1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(3){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mr80snx79b1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(4){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mrraktQTCS1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(5){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_msuei3sMTo1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(6){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mtw7mhZsCe1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(7){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_msuei3sMTo1st5lhmo1_1280.jpg);
}
.loaded:nth-of-type(8){ background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/25381/tumblr_mufrlh9WqW1st5lhmo1_1280.jpg);
}
div.loaded:after { opacity: 0;
}

Lazy Load for Background Images - Script Codes JS Codes

var ll = $('div');
var lh = []
var wscroll = 0;
var wh = $(window).height();
function update_offsets(){ $('div').each(function(){ var x = $(this).offset().top; lh.push(x); });
};
function lazy() { wscroll = $(window).scrollTop(); for(i = 0; i < lh.length; i++){ if(lh[i] <= wscroll + (wh - 200)){ $('div').eq(i).addClass('loaded'); }; };
};
// Page Load
update_offsets();
lazy();
$(window).on('scroll',function(){ lazy();
});
Lazy Load for Background Images - Script Codes
Lazy Load for Background Images - Script Codes
Home Page Home
Developer Rosh Jutherford
Username the_ruther4d
Uploaded September 04, 2022
Rating 4
Size 2,977 Kb
Views 22,264
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