For single page styling simply head towards Dashboard >> Appearance >> Customize >> Page >> Single. You will have the following option:
- Layout – Allows you to choose a layout to display for all single post pages.
- Hide Page Header – Allows you to hide/show page header for this post type.
- Enable Header Image – Allows you to enable or disable the header image.
- Page Header Image – Allows you to set page header image for a single post page.
- Switch Sub Header Image with featured image – This option will display the selected posts featured image in the subheader.
- Left Sidebar – choose the left sidebar for the single page.
- Right Sidebar– choose a right sidebar for the single page.