serenity/Tests/LibWeb/Layout/input/block-and-inline/margin-collapse-1.html

<style>
body {
    font-family: 'SerenitySans';
}
#foo {
    border: 1px solid red;
    margin: 25px;
    width: 100px;
    height: 100px;
}
#bar {
    border: 1px solid green;
    margin: 25px;
    width: 100px;
    height: 100px;
}
</style>
<div id=foo>foo</div>
<div id=bar>bar</div>