3 <title>CSS Containment Test: Reference file
</title>
4 <link rel=
"author" title=
"Manuel Rego Casasnovas" href=
"mailto:rego@igalia.com">
7 border:
5px solid green;
16 <p>This test passes if it has the same output as the reference. You see the word
"before", a
10px green square at the top, and then the word
"after".
</p>
17 before
<button>b
</button>after