5 Open Source UI Layouts Calendar with Css

1. Calendar Widget:

See the  code on CodePen.

2. Colorful UI Calendar:

See the code on CodePen.

3. Flat Fullscreen Calendar:

See the Pen Full Screen Flat Calendar by usama abbasi (@saamiiabbasi007) on CodePen.

4. Flip Calendar:

See the Pen Calendar Flip Animation by usama abbasi (@saamiiabbasi007) on CodePen.

5. Dark UI Responsive Calendar:

See the Pen Responsive Calendar by usama abbasi (@saamiiabbasi007) on CodePen.