| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|       <button>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <address>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <blockquote>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <menu>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <p>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <ul>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <h1>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <h6>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <listing>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <pre>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <form>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <li>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <dd>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <dt>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <plaintext>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <table>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <hr>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <xmp>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|       <button>
|         <p>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <address>
|       <button>
|     "a"

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <address>
|       <button>
|     "a"

| <html>
|   <head>
|   <body>
|     <p>
|       <p>
|       <table>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <svg svg>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|     <figcaption>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <p>
|     <summary>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <form>
|       <table>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <table>
|       <form>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <table>
|       <form>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <svg svg>
|       <svg foreignObject>
|         <p>

| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <svg svg>
|       <svg title>
|         "abc"

| <html>
|   <head>
|   <body>
|     <option>
|       <span>
|         <option>

| <html>
|   <head>
|   <body>
|     <option>
|     <option>

| <html>
|   <head>
|   <body>
|     <math math>
|       <math annotation-xml>
|     <div>

| <html>
|   <head>
|   <body>
|     <math math>
|       <math annotation-xml>
|         encoding="application/svg+xml"
|     <div>

| <html>
|   <head>
|   <body>
|     <math math>
|       <math annotation-xml>
|         encoding="application/xhtml+xml"
|         <div>

| <html>
|   <head>
|   <body>
|     <math math>
|       <math annotation-xml>
|         encoding="aPPlication/xhtmL+xMl"
|         <div>

| <html>
|   <head>
|   <body>
|     <math math>
|       <math annotation-xml>
|         encoding="text/html"
|         <div>

| <html>
|   <head>
|   <body>
|     <math math>
|       <math annotation-xml>
|         encoding="Text/htmL"
|         <div>

