It appears you have a well-structured Git repository with various files, including SVG icons and HTML documents. Here's a brief overview:

backend/node_modules/@tailwindcss/aspect-ratio/tests/test.js

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+const postcss = require('postcss')
+
+let expectedV3 = `
+.aspect-w-1 {
+    position: relative;
+    padding-bottom: calc(var(--tw-aspect-h) / var(--tw-aspect-w) * 100%);
+    --tw-aspect-w: 1
+}
+.aspect-w-1 > * {
+    position: absolute;
+    height: 100%;
+    width: 100%;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0
+}
+.aspect-w-2 {
+    position: relative;
+    padding-bottom: calc(var(--tw-aspect-h) / var(--tw-aspect-w) * 100%);
+    --tw-aspect-w: 2
+}
+.aspect-w-2 > * {
+    position: absolute;
+    height: 100%;
+    width: 100%;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0
+}
+.aspect-h-2 {
+    --tw-aspect-h: 2
+}
+.aspect-w-\\[123\\] {
+    position: relative;
+    padding-bottom: calc(var(--tw-aspect-h) / var(--tw-aspect-w) * 100%);
+    --tw-aspect-w: 123
+}
+.aspect-w-\\[123\\] > * {
+    position: absolute;
+    height: 100%;
+    width: 100%;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0
+}
+.aspect-w-\\[var\\(--width\\)\\] {
+    position: relative;
+    padding-bottom: calc(var(--tw-aspect-h) / var(--tw-aspect-w) * 100%);
+    --tw-aspect-w: var(--width)
+}
+.aspect-w-\\[var\\(--width\\)\\] > * {
+    position: absolute;
+    height: 100%;
+    width: 100%;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0
+}
+.aspect-h-\\[123\\] {
+    --tw-aspect-h: 123
+}
+.aspect-h-\\[var\\(--height\\)\\] {
+    --tw-aspect-h: var(--height)
+}
+.aspect-none {
+    position: static;
+    padding-bottom: 0
+}
+.aspect-none > * {
+    position: static;
+    height: auto;
+    width: auto;
+    top: auto;
+    right: auto;
+    bottom: auto;
+    left: auto
+}
+`
+
+it('v3', () => {
+  let css = postcss([
+    require('tailwindcss')({
+      content: [
+        {
+          raw: 'aspect-none aspect-w-1 aspect-w-2 aspect-h-2 aspect-w-[123] aspect-w-[var(--width)] aspect-h-[123] aspect-h-[var(--height)]',
+        },
+      ],
+      plugins: [require('../')],
+    }),
+  ]).process('@tailwind components').css
+
+  expect(css).toBe(expectedV3.trim())
+})
+
+let expectedV2 = `
+.aspect-w-1,
+.aspect-w-2 {
+  position: relative;
+  padding-bottom: calc(var(--tw-aspect-h) / var(--tw-aspect-w) * 100%)
+}
+
+.aspect-w-1 > *,
+.aspect-w-2 > * {
+  position: absolute;
+  height: 100%;
+  width: 100%;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0
+}
+
+.aspect-none {
+  position: static;
+  padding-bottom: 0
+}
+
+.aspect-none > * {
+  position: static;
+  height: auto;
+  width: auto;
+  top: auto;
+  right: auto;
+  bottom: auto;
+  left: auto
+}
+
+.aspect-w-1 {
+  --tw-aspect-w: 1
+}
+
+.aspect-w-2 {
+  --tw-aspect-w: 2
+}
+
+.aspect-h-2 {
+  --tw-aspect-h: 2
+}
+`
+
+it('v2', () => {
+  postcss([
+    require('tailwindcss-v2')({
+      purge: { enabled: true, content: [{ raw: 'aspect-none aspect-w-1 aspect-w-2 aspect-h-2' }] },
+      variants: [],
+      plugins: [require('../')],
+    }),
+  ])
+    .process('@tailwind components', { from: undefined })
+    .then(({ css }) => {
+      expect(css).toBe(expectedV2.trim())
+    })
+})