Day 1: <p>,<h1>,<h2>,<tittle>.
Day 2: <br>.
Day 3: <img>,<id>,<class>,favicon,<style>.
Day 4: Directory.
Day 5: Forms
Day 6: Flexbox
Day 7:Task Manager.
Day 8: Font-Family.
Day 9: <dl>,<dt>,<dd>,<pre>
Day 10: Javascript.
Day 11.1: Animation.
Day 11.2: Slide Show.
Day 12: Image Map.