Fix extra css problem with none value.
Fix extra css problem with none value.

olegpshenichniy/Booktype,danielhjames/Booktype,btat/Booktype,sourcefabric/Booktype,olegpshenichniy/Booktype,kronoscode/Booktype,MiczFlor/Booktype,okffi/booktype,danielhjames/Booktype,eos87/Booktype,okffi/booktype,kronoscode/Booktype,ride90/Booktype,sourcefabric/Booktype,ride90/Booktype,ride90/Booktype,okffi/booktype,olegpshenichniy/Booktype,olegpshenichniy/Booktype,danielhjames/Booktype,rob-hills/Booktype,aerkalov/Booktype,sourcefabric/Booktype,btat/Booktype,MiczFlor/Booktype,MiczFlor/Booktype,eos87/Booktype,danielhjames/Booktype,MiczFlor/Booktype,eos87/Booktype,btat/Booktype,rob-hills/Booktype,danielhjames/Booktype,kronoscode/Booktype,sourcefabric/Booktype,okffi/booktype,rob-hills/Booktype,aerkalov/Booktype,ride90/Booktype,sourcefabric/Booktype,eos87/Booktype,kronoscode/Booktype,kronoscode/Booktype,okffi/booktype,btat/Booktype,eos87/Booktype,MiczFlor/Booktype,ride90/Booktype,olegpshenichniy/Booktype,rob-hills/Booktype,aerkalov/Booktype