Gmail predicts which emails might be of high importance to you so it marks them as important with a yellow icon. If your inbox ends up full of so called important emails, this is how you disable this feature.
If you want to put scrolling text on your page than you should take a look at this lesson. I will show you how to add scrolling text to your web page in Adobe Dreamweaver.
If you want to use only a song from a specific video, you can use it with the help of web converter. In this lesson I will show you how you can convert Youtube video to mp3 file.