This is a Sass mixin to handle a 3-way dark mode. It relies on a data-theme attribute on your <html> element with a value of light or dark. If data-theme is absent (i.e. it's neither light nor dark), the system's preferred mode is used.
body {
// matches data-theme="light" or data-theme="auto" with system instructing light mode
@include light {
background: white;
color: black;
| $critical-css-only:true !default; | |
| @mixin critical($critical-only:true){ | |
| @if (($critical-css-only and $critical-only) or (not $critical-css-only and not $critical-only)){ | |
| @content; | |
| } | |
| } |
I've been finding this little meta[name='tmpl'] pattern useful lately when making template-based decisions in JS, such as when loading a particular file or set of files that are needed only on a particular page of a site.
First, in the HTML of a particular template, like say, a search result page:
<head>
...
<meta name="tmpl" content="searchresult">
</head>