Answer 1

Sir. Ahmed Most welcome sis.
Happy learning...

Answer 2

Sir. Ahmed
If you're having trouble in code, share your code and then describe what error message you're receiving. without watching code no one can figure out what's going wrong.

Answer 3

Sir. Ahmed Sis,
Have you tried to using searchbar?
Before asking any questions Plz use searchbar,read this thread..
https://code.sololearn.com/W0uW3Wks8UBk/?ref=app

And read again these courses.
https://www.sololearn.com/learn/o-CSS/1090/?ref=app

https://www.sololearn.com/learn/courses/le-responsive-web-design

https://www.sololearn.com/learn/courses/web-development

See this what I found after searching...
https://www.w3schools.com/css/css_text_align.asp

https://www.w3schools.com/cssref/pr_text_text-align.php

https://www.w3schools.com/tags/tag_center.ASP

https://www.tutorialspoint.com/How-to-center-text-in-HTML#:~:text=The%20text%20in%20an%20HTML,another%20name%20for%20this%20tag.