remove redundant css class
remove redundant css class

UndeadBlow/giraffe,BjornFJohansson/giraffe,addgene/giraffe,BjornFJohansson/giraffe,addgene/giraffe,UndeadBlow/giraffe,BjornFJohansson/giraffe,BjornFJohansson/giraffe,addgene/giraffe,addgene/giraffe,BjornFJohansson/giraffe