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HTML Responsive Images Image Delivery with Srcset and Sizes Using Srcset

I can not figure out what I am coding wrong, can anyone point me in the right direction?

Can not figure out what to input into the srcset, can anyone tell me what and why I need to input in the code?

<!doctype html>
<html lang="en">
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Responsive Images</title>
    <link rel="stylesheet" href="normalize.css" />
    <link href='http://fonts.googleapis.com/css?family=Nunito:400,300' rel='stylesheet' type='text/css'>
    <link rel="stylesheet" href="main.css" />
    <script src="picturefill.min.js" async></script>

    <div class="wrapper">

        srcset="banner-large.jpg 2048w,
                banner-medium.jpg 1400w,
                banner-small.jpg  800w"
        alt="Photograph of Nick Pettit in front of trees."

      <div class="content-block">

        <div class="profile-description">

          <div class="profile-image">
              alt="Photograph of a flower."

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          <p>Integer dignissim ultrices lacus tincidunt aliquet. Cras maximus eleifend felis. Pellentesque in nulla condimentum, aliquet orci sed, gravida velit. Pellentesque mattis ex at magna consectetur porta. Aenean eget volutpat urna. Maecenas sed nisl sit amet tortor vulputate vulputate non nec elit. Mauris bibendum erat nec purus finibus, eget molestie dolor placerat. Pellentesque at massa et ligula sagittis gravida. Nunc libero dolor, luctus ac imperdiet ac, suscipit nec nibh. Ut non diam urna.</p>
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2 Answers

Steven Parker
Steven Parker
228,991 Points

The instructions say that "the @1x image that's already present comes second", so instead of replacing it, leave it in there and put the new image in front of it. A "srcset" can have number of images separated by commas.

Also include a descriptor after the name so the browser will know when to use the new image. The image already there is followed by a pixel density descriptor that can serve as an example.

You can refer to the MDN page if you need more details on the "img" element or the "srcset" attribute.

Happy coding!

Mr. Parker, what is incorrect about this code? "photo-@2x.jpg, @1x.jpg"

Steven Parker
Steven Parker
228,991 Points

The original code had "photo-@1x.jpg 1x", which should remain as-is. And the new filename needs a descriptor so the browser will known when to apply it (it is treated as "1x" by default).