Div + CSS naming rules help Seo

To better meetSeo specificationsWhich of the following is common in front-end development?CSS + Div naming rules:
Header: Header
Logon entry: loginbar
Logo: logo
Sidebar: sidebar
Advertisement: banner
Navigation: nav
Subnavigation: subnav
Menu: Menu
Sub menu: submenu
Search: Search
Scroll: Scroll
Page subject: Main
Content: Content
Tab: Tab
ArticleList: List
Message: msg
TIPS: Tips
Topic title: Title
Link: friendlink
Footer: footer
Join: joinus
Guide: Guild
Service: Service
Hotspot: hot
News: News
Download: Download
Registration: Register
Status: Status
Button: BTN
Vote: Vote
Partner: Partner
Copyright: Copyright

 

1. cssid name

Coat: Wrap
Main navigation: mainnav
Subnavigation: subnav
Footer: footer
Entire page: Content
Header: Header
Footer: footer
Trademark: Label
Title: Title
Main navigation: mainnav (globalnav)
Top navigation: topnav
Side navigation: sidebar
Left Navigation: leftsidebar
Right navigation: rightsidebar
Flag: logo
Banner
Menu content 1: menu1content
Menu capacity: menucontainer
Sub menu: submenu
Navigation icon: sidebaricon
Note: Note
Breadcrumb)
Container: Container
Content: Content
Search: Search
Login: Login
Functional Area: Shop (such as shopping cart and cashier)
Current

2. Style File Name

Main: master.css
Layout: layout.css
Column: columns.css
Text: font.css
Print Style: print.css
Themes.css
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