404 Page Layout
From the dashboard, Go to Appearance > Customize > General > 404 Page Layout
1- General Setting

404 Layout
- Normal: You can set default layout.
- Narrow: You can narrow (boxed) layout.
- Fullwidth: you can set full-width layout.
- Left-Sidebar: you can set layout with left-sidebar.
- Right-Sidebar: you can set layout with right-sidebar.
404 Default Sidebar
- You can choose any sidebar style for sidebar layout here.
Content Style
- You can choose any content style for example boxed and unboxed here.
Content Vertical Padding
- You can choose content vertical padding for example (enable or disable or top only or bottom only).
2 – Design Setting

Site Background
- You can customize your 404 page site background .
Content Background
- You can customize your 404 page content background .