Add TailwindCSS

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/tailwind.config.js

@@ -0,0 +1,21 @@
+function withOpacityValue(variable) {
+  return ({ opacityValue }) => {
+    if (opacityValue === undefined) {
+      return `rgb(var(${variable}))`;
+    }
+    return `rgb(var(${variable}) / ${opacityValue})`;
+  };
+}
+
+module.exports = {
+  content: ["./public/**/*.html", "./src/**/*.{vue,js,ts,jsx,tsx}"],
+  theme: {
+    extend: {
+      colors: {
+        primary: withOpacityValue("--color-primary"),
+        secondary: withOpacityValue("--color-secondary"),
+      },
+    },
+  },
+  plugins: [],
+};