Hi Alifia, to make a simple website on a mobile phone, you can use website builders like Wix, Weebly, or Squarespace.
Install their mobile app, sign up, choose a template, customize it by adding text, images, and other elements, and then publish the site.
For a more detailed approach, using a computer might be easier due to the limited functionality of mobile devices for web development.
Thanks for the question, hope it helps! 😉