How It Feels After FSCSS v1.1.15 Introduced "@define"

When FSCSS v1.1.15 introduced @define , it quietly changed how to write CSS. Before this update, FSCSS already had powerful features—arrays, generators, shorthand methods, and dynamic utilities. But @define adds something deeper: Reusable style functions. Not just utilities… actual programmable styles. Reusable Style Functions With @define , you can create reusable style blocks and apply them anywhere. Example: @define center ( elem ){ @use ( elem ){ ` display :flex ; justify-content :center ; align-items :center ; ` } } Usage: @center (. box ) Result: .box { display : flex ; justify-content : center ; align-items : center ; } Instead of rewriting the same styles again and again, you define them once and reuse them anywhere. Styles With Parameters "@define" also supports parameters: @define name(a,b,...){...} , making it even more powerful. Example: @define btn ( color : #6366f1 ){ padding : 10px 16px ; background : @ use ( color ); color : white ; border-radius : 6px ; } Usage: .butto