HTML width and height in Pixels

[mad-art-blocker]

I never used a framework or TypeScript before, but the image profile width and height has a value of 100px (px threw an error). It should be without px?

// 📂 src/pages/index.astro

<img
  src={profilePicture}
  alt="Frau Katerina's headshot."
  width="100px"
  height="100px"
/>