I want to make the block's a little bit transparent and bright I want to make a lyric video. On the picture their 
is something like a frame where the text then flies through. I want these blocks to be a bit transparent, but you still see them. It would also be cool if they were a bit like glowing. Thx for our help.
Change to cycles render
Select the object and make a new material for it
Open node editor and delete the diffuse material
Add a mix shader, emission node and a transparent BSDF and connect them like they are connected in the image
The strength on the emission node is the glow strength of the object
The Fac on the mix shader is the transparency of the object: 1.0 is invisible and 0.0 is not any transparent