how to make my text left align

Try using a browser tool like Firebug to work with CSS. There’s lots of good info on the Firebug website and for CSS reference see:

https://www.w3schools.com/css/default.asp

or

https://csscreator.com

yes i know that trick, but i cannot find out how to put my menu items left align and when i resize window on my computer to see that change on the same place

something like padding-left:70% or auto, but this doesn’t work fine for me

?using a div wrapper with a max-width css property?

@antoniofajdiga, try posting on CSS forums. This doesn’t seem related to WordPress. If I’m wrong, feel free to create a new thread but include as much information as possible.