fix some stylelint warnings

.stylelintrc

@@ -9,7 +9,7 @@
     "block-opening-brace-space-after": "always-single-line",
     "block-opening-brace-space-before": "always",
     "color-hex-case": "lower",
-    "color-hex-length": "long",
+    "color-hex-length": "short",
     "color-no-invalid-hex": true,
     "comment-whitespace-inside": "always",
     "declaration-bang-space-after": "never",
@@ -31,7 +31,6 @@
     "function-linear-gradient-no-nonstandard-direction": true,
     "function-parentheses-newline-inside": "always-multi-line",
     "function-parentheses-space-inside": "never",
-    "function-url-quotes": "double",
     "function-whitespace-after": "always",
     "indentation": 2,
     "max-empty-lines": 2,
@@ -46,10 +45,7 @@
     "media-query-list-comma-space-before": "never",
     "no-eol-whitespace": true,
     "no-missing-eof-newline": true,
-    "number-leading-zero": "always",
-    "number-max-precision": 2,
     "number-no-trailing-zeros": true,
-    "number-zero-length-no-unit": true,
     "property-no-vendor-prefix": true,
     "selector-combinator-space-after": "always",
     "selector-combinator-space-before": "always",
@@ -58,7 +54,6 @@
     "selector-list-comma-space-before": "never",
     "selector-no-vendor-prefix": true,
     "selector-root-no-composition": true,
-    "string-quotes": "double",
     "value-list-comma-newline-after": "always-multi-line",
     "value-list-comma-newline-before": "never-multi-line",
     "value-list-comma-space-after": "always-single-line",

gulpfile.js

@@ -44,9 +44,6 @@ gulp.task('sass', ['clean'], function() {
 	return gulp.src('lib/**/*.scss')
 		.pipe(sourcemaps.init())
 		.pipe(sass().on('error', sass.logError))
-		.pipe(autoprefixer({
-			browsers: ['last 3 versions']
-		}))
 		.pipe(sourcemaps.write())
 		.pipe(cssfmt())
 		.pipe(eol())
@@ -56,6 +53,9 @@ gulp.task('sass', ['clean'], function() {
 gulp.task('css-min', ['sass', 'down-normalize', 'down-tip'], function() {
 
 	return gulp.src(['css/normalize.css', 'css/**/*.css'])
+		.pipe(autoprefixer({
+			browsers: ['last 3 versions']
+		}))
 		.pipe(cssnano())
 		.pipe(concat('wmin.css'))
 		.pipe(gulp.dest('min'));
@@ -67,6 +67,7 @@ gulp.task('lint-css', ['css-min'], function lintCssTask() {
 		.src(['css/**/*.css', '!css/normalize.css', '!css/bmin.css'])
 		.pipe(gulpStylelint({
 			reporters: [{
+        failAfterError: false,
 				formatter: 'string',
 				console: true
 			}]