The postcss is generating the wrong col.scss rules. It is generating > @for $i from 1 to 24 instead of > @for $i from 1 through 24 The through makes 24 inclusive, so rules like > .el-col-xs-24 can work. 
The postcss is generating the wrong col.scss rules. It is generating
instead of
The through makes 24 inclusive, so rules like
can work.