| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <xyz:abc>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <xyz:abc>
|     <span>

| <!DOCTYPE html>
| <html>
|   abc:def="gh"
|   <head>
|   <body>
|     <xyz:abc>

| <!DOCTYPE html>
| <html>
|   xml:lang="bar"
|   <head>
|   <body>

| <!DOCTYPE html>
| <html>
|   123="456"
|   <head>
|   <body>

| <!DOCTYPE html>
| <html>
|   123="456"
|   789="012"
|   <head>
|   <body>

