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POHow to conditionally load CSS and extend it using SASS/SCSS
 

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  1. POHow to conditionally load CSS and extend it using SASS/SCSS
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    <p><strong>tl:dr version:</strong> is there a way to @extend a css class and not have the original class appear in my compiled css <em>without</em> changing all my css classes to %placeholder classes?</p> <p><strong>Short answer based on the below answers</strong>: it appears there is no way to do this unless you go through and convert the css to silent/placeholder classes e.g. convert .one{} to %one{} and even then that will cause problems with media queries.</p> <p>I have a css file (lets call it "style.css") which contains 200+ CSS classes to style various elements like forms and buttons etc. What I want is to include some of those classes in a project and other classes from that file in other random projects/websites. With each new project I also want to give the classes random semantic class names of my choosing.</p> <p>My preprocessor of choice when working with CSS is SCSS and I really need an answer that uses the power of SCSS. </p> <p>Here is a quick example of what I'm talking about - loading css into a SCSS file and then extending that css with my own class names:</p> <pre><code>//style.css .one { color: red; padding-top: 1px; } //style2.scss @import "style.css"; .two { @extend .one; } </code></pre> <p>The problem here is that my SCSS file will compile to CSS and look like this:</p> <pre><code>//style2.css .one { color: red; padding-top: 1px; } .two { color: red; padding-top: 1px; } </code></pre> <p>But what I want to do is only include the second class, which I gave a special name. </p> <p>I've tried a few ways of doing this but here's one example that does not work but is along the lines of what I was thinking I should be able to do:</p> <p>A.) First, I grab the style.css file and chuck copy/paste it into a style.scss file.</p> <p>B.) Second I wrap all the whole thing in a placeholder/silent class, like so:</p> <pre><code>//style.scss %placeholder { .one { color: red; padding-top: 1px; } } </code></pre> <p>C.) Then I import that SCSS file and try and extend a class of my choosing that is within the placeholder, like this:</p> <pre><code>//style2.scss @import "style"; .two { @extend .one; } </code></pre> <p>When I try and compile this I get <strong>a blank css file</strong> (and rightly so for trying to be too tricky). The other thing I know is that you can't extend nested selectors so "@extend %placeholder .one;" is also out of the question.</p> <p><strong>My question is this: does anyone know of a way to import and then extend a css class so that the compiled result does not include the imported css?</strong></p> <p>The only other solution I can think of is to just delete the imported css from the top of my file before I let it out into the wild. But this is honestly less than ideal solution.</p> <p>Thank you in advance to any answers :)</p>
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