Navigate to the SharePoint site to which you want to add a new page

Select a template to create your page, or choose a blank template

Click the "Add a name" field and add a title for your new page

You may edit or delete existing content blocks in the page template

Customize the content blocks of your page template

Click on the pen icon customize the layout of a block

Customize the title area by choosing a layout and alignment

Click the plus icon on left side of your page to add a new block

Choose the layout for your new content block

Click on the + icon to add a new web part in your new content block

Choose the type of the web part you want to add

After you have finished editing, click "Publish"

How to create and edit a SharePoint page