Embed videos & playlists

click here to watch in details on YouTube
https://youtu.be/eroT4Fh4QIU

Embed a video

    On a computer, go to the YouTube video that you want to embed.
    Under the video, click Share .
    Click Embed.
    From the box that appears, copy the HTML code.
    Paste the code into your blog or website HTML.

Embed a playlist

    Sign in to your YouTube account on a computer.
    On the left-hand side of the page, click Playlists.
    For the playlist that you want to embed, click its title.
    Click Share .
    Click Embed.
    From the box that appears, copy the HTML code.
    Paste the code into your blog or website HTML

Regards:
https://support.google.com/youtube/answer/171780?expand=PrivacyEnhancedMode#privacy