sass - SCSS Compilation error using mixin / semantic grid -

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i've added semantic grid css file project , imported homepage.scss. '.column(x)' causing compilation error. i'm doing stupid - spot issue?

@import '../layout/main.scss'; @import '../base/grid.scss'; $columns: 12; $column-width: 60; $gutter-width: 30em; $total-width: 100%;  .banner{     .column(6);      background: pink;      height: 5em;  }

scss syntax different less. need:

@include column(6);


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