Whats wrong with my code, please i need help i cant do this.

Media Styles

Next, open the cp_media2.css file. Within the Media Styles section, insert a style rule for all audio andvideo elements that displays them as blocks with a width of 95%. Center the audio and video elements by setting the top/bottom margins to 20 pixels and left/right margins set to auto.

Track Styles

Go to the Track Styles section and create a style rule for track cues that:

sets the background color to transparent,

adds a black text shadow with horizontal and vertical offsets of 1 pixel and a blur of 2 pixels,

sets the text color to rgb(255, 177, 66), and

sets the font size to 1.2 em using the sans serif font family.

Create a style rule for track cues belonging to the Titleclass that sets the font size to 2em and font family to serif.

Filename: */ /* Media Styles */

audio, video{ display: block; width: 95%; margin-top:20px center; margin-bottom: 20px auto; margin-right: auto; margin-left: auto; }

/* Track Styles */

::cue{ background: transparent;

text-shadow: black 1px 2px;

background-color:rgb(255, 177, 66);

font:1.2 em sans serif;

}

::cue(.Title)

{

font-size:2em;

font-family: serif;

}