How to Insert static block in CMS page using widget In Magento 2
Login in to Magento Admin.
Go to Content -> Pages From Navigation
Open Content Page from navigation
Click on “Add Page” Or Edit existing page.
Add New Page or Use Existing page
Fill out Basic details of page after that on content section hide editor by click on Show/Hide Editor and click on Insert Widget.
Edit Page Content Click on insert Widget
OR you can also insert widget from editor by click on below symbol
Insert widget from Editor
Select CMS Static Block Widget from drop down box and select Static Block that you want to insert
Select Widget Type and select Static Block
After that Save Page.
You can see Inserted static block on that page front side.
Front side static block output
