[HTML5] Show Images of Differing Resolutions Depending on the Viewport Width with srcset

For small viewports, we want to save bandwidth and we may be dealing with slow speeds; so it's very important that images' filesizes are not too big. In this lesson, we are going to cover how to show a different-sized image than the one seen on desktop.

 

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, maximum-scale=1" />
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/marx/2.0.7/marx.min.css">
  <link rel="stylesheet" href="style.css">
</head>

<body>
<!-- 700w: 700px; 90vw: 90% vieport width -->
  <img
    srcset="https://imgur.com/Nv96rWN.jpg 700w,
      https://imgur.com/aJOEQVz.jpg 1024w"
    sizes="(max-width: 480px) 90vw,
      (max-width: 700px) 70vw,
      60vw"
    src="https://imgur.com/aJOEQVz.jpg"
    alt="Opal lying on her new bed - my laptop case"
  >

</body>

</html>

 

posted @ 2018-10-22 19:55  Zhentiw  阅读(134)  评论(0)  编辑  收藏  举报