Preview:
<picture>
<source media='(max-width: 1024px)' srcset='<?php echo get_template_directory_uri()?>/images/demo/work-image-bg--mobile.jpg' class="project__bg--mobile" alt="">
<img src="<?php echo get_template_directory_uri()?>/images/demo/work-image-bg.jpg" class="project__bg--desktop" alt="" />
</picture>
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Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!

Click to optimize width for Twitter