.reTool .YouTube {
    background-image: url('/images/icons/editor/youtube.png');
}
.reTool .DocumentEmbedder {
    background-image: url('/images/icons/editor/pdf.png');
}
.reTool .SlideBoom
{
    background-image: url('/images/icons/editor/embed.png');
}
.reTool .ArticulateFileUploader
{
    background-image: url('/images/icons/editor/articulate.png');
}

.reTool .VideoUploader {
    background-image: url('/images/icons/editor/vzaar.png');
}

.reTool .Webinar {
    background-image: url('/images/icons/editor/webinar.png');
}