Merge pull request #765 from sveltejs/gh-759

preserve space before non-parenthesized media query expression

src/css/Stylesheet.ts

@@ -144,7 +144,8 @@ class Atrule {
 
 	minify(code: MagicString, cascade: boolean) {
 		if (this.node.name === 'media') {
-			let c = this.node.start + 6;
+			const expressionChar = code.original[this.node.expression.start];
+			let c = this.node.start + (expressionChar === '(' ? 6 : 7);
 			if (this.node.expression.start > c) code.remove(c, this.node.expression.start);
 
 			this.node.expression.children.forEach((query: Node) => {

test/css/samples/media-query-word/expected.css

@@ -0,0 +1 @@
+@media only screen and (min-width: 400px){div[svelte-xyz],[svelte-xyz] div{color:red}}

test/css/samples/media-query-word/input.html

@@ -0,0 +1,9 @@
+<div>hello</div>
+
+<style>
+	@media only screen and (min-width: 400px) {
+		div {
+			color: red;
+		}
+	}
+</style>