<meta charset=”UTF-8″ />(global writing form)
<meta name=”viewport” content=”width=”device-width, initial-scale=1.0″ />(this and above one is necessary)
<meta name=”author” content=”(your name)” />
<meta name=”description” content=”(description that you want to give for your page)” />
<meta name=”keywords” content=”(keywords that search engines will use to find your website)” />
<meta name=”copyright” content=”(your name or your site’s name)” />
<meta name=”category” content=”(write the category)” />
<meta name=”subject” content=”(write the subject of your page)” />
there are much more meta tags, I have showed you the most important ones If you want to learn more, you can search “HTML Meta tags” and see all of the meta tags.