Does anyone know how to remove the background on your post on blogger?

[NorthFace]

Im not talking about the background on the blog, im talking about the background for your post. I looked all around and i cant find a way to remove it. It gives you a transparency option but that doesn't work good. I want it gone for good. Does anyone know how to fix this? Thanks.

 

[hootsparta]

Im not talking about the background on the blog, im talking about the background for your post. I looked all around and i cant find a way to remove it. It gives you a transparency option but that doesn't work good. I want it gone for good. Does anyone know how to fix this? Thanks.

I think its not possible to remove better you can change it..