Update docs examples + Add Select component + Add Card, Base, Title classes

src/routes/getting-started/css.md

@@ -1,31 +1,7 @@
 ---
-title: CSS Configuration
+title: Writing CSS
 ---
 
-Use [PostCSS](https://postcss.org/) to process your css in components and `.postcss` files.
+TODO
 
-Install PostCSS with:
-
-```bash
-pnpx svelte-add@latest postcss
-```
-
-This is the recommended `postcss.config.cjs` setup:
-
-```js
-const config = {
-  plugins: [
-    require('postcss-import'),
-    require('postcss-strip-inline-comments'),
-    require('postcss-nested'),
-    require('postcss-preset-env'),
-    require('autoprefixer'),
-    require('postcss-extend-rule'),
-    process.env.NODE_ENV === 'development' && require('cssnano')({
-      preset: 'default',
-    })
-  ],
-};
-
-module.exports = config;
-```
+Use `px` measurements. Use `hsl` for colors.