var gulp = require('gulp');
var stylus = require('gulp-stylus');
var watch = require('gulp-watch');
var nib = require('nib');
var rename = require('gulp-rename');

var autoprefixer = require('gulp-autoprefixer');
var browserslist = ['Android 2.3', 'Android >= 4', 'Chrome >= 20', 'Firefox >= 24', 'Explorer >= 8', 'iOS >= 6', 'Opera >= 12', 'Safari >= 6'];


    gulp.src('./style/hover.styl')
        .pipe(stylus({
            compress:true,
            use: nib()
        }))
        .pipe(rename('hover.min.css'))//重命命
        .pipe(gulp.dest('./build/css/'));//压缩到的文件夹