Need help to center align my products description

[Dude1]

Need some help here to change my product description to be on middle instead of right or left, i tried to change it on edit theme but is not possible, the description text just go right or left depending on the product image side, i saw another person with same doubt that solved it doing this: ''Asset->/theme--async.css ->paste below code at the bottom of the file.''  but there's no Theme-async.css on my codes. 

My theme is ''Refresh''

[Made4uo-Ribe]

Hi @Dude1 

Please, share your store URL. Thanks!