feat: add 7.x source code

test/testdata/chromium/html/sample1/style.css

@@ -0,0 +1,28 @@
+body {
+    font-family: Arial, Helvetica, sans-serif;
+}
+
+.center {
+    text-align: center;
+}
+
+.google-font {
+    font-family: 'Montserrat', sans-serif;
+}
+
+@font-face {
+    font-family: 'Local';
+    src: url('font.woff') format('woff');
+    font-weight: normal;
+    font-style: normal;
+}
+
+.local-font {
+    font-family: 'Local'
+}
+
+@media print {
+    .page-break-after {
+        page-break-after: always;
+    }
+}