I'm working in a project were i have to use less, personally I always use stylus, but I can't with this project, so I have the next question. how can i do this, that i'm doing with stylus, with less ? The problem is the number of arguments. in stylus : box-shadow() -webkit-box-shadow arguments -moz-box-shadow arguments box-shadow arguments .div { box-shadow 0 2px 8px rgba(0, 0, 0, 0.3), inset 0 1px rgba(255, 255, 255, 0.2), inset 0 10px rgba(255, 255, 255, 0.2), inset 0 10px 20px rgba(255, 255, 255, 0.2), inset 0 -15px 30px rgba(0, 0, 0, 0.2) } .div2 { box-shadow 0 2px 8px rgba(0, 0, 0, 0.3) }