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{{!--
Wow what the hell is going on in here even?
Ok so, several templates use this big header with a giant BG image. Nice idea, but big images
have a heavy impact on performance, so it's a good idea to make them responsive. Because we
can only get the image dynamically using Handlebars, and we can only set the image to properly
be a background image using CSS, we end up with a handful of inline styles.
If the template in question has a background image, then we render responsive image styles
for it, and apply those styles to the <header> tag. Else, we just output a <header> tag
with a `no-image` class so we can style it accordingly.
--}}
{{#if background}}
<style type="text/css">
.responsive-header-img {
background-image: url({{img_url background}});
}
@media(max-width: 1000px) {
.responsive-header-img {
background-image: url({{img_url background size='l'}});
background-image: -webkit-image-set(url({{img_url background size='l'}}) 1x,
url({{img_url background size='xl'}}) 2x);
background-image: image-set(url({{img_url background size='l'}}) 1x,
url({{img_url background size='xl'}}) 2x);
}
}
@media(max-width: 600px) {
.responsive-header-img {
background-image: url({{img_url background size='m'}});
background-image: -webkit-image-set(url({{img_url background size='m'}}) 1x,
url({{img_url background size='l'}}) 2x);
background-image: image-set(url({{img_url background size='m'}}) 1x,
url({{img_url background size='l'}}) 2x);
}
}
</style>
<div class="outer site-header-background responsive-header-img">
{{else}}
<div class="outer site-header-background no-image">
{{/if}}