how do i adjust padding?

my site is https://www.red94.net

when i adjust the width of the video player, it changes the width but stays centered within the sidebar. i want to remove the space to the right of the player so that it is aligned with the banner, without having to make the video player take up the entire sidebar. how do i do this?

here is the code i have:

}

#content {
width: 590px;
padding: 25px 0px 0px 0px;
}

#sidebar{
width: 300px;
margin: 25px 0px 0px 0px;
padding: 0px 0px 0px 0px;
}

.thin-sidebar {

margin: 25px 0px 0px 0px;
width: 200px;
padding: 0px 0px 0px 0px;
}