Source code
Revision control
Copy as Markdown
Other Tools
<!DOCTYPE html>
<style>
html, body {
margin: 0;
}
</style>
<div style="width: 400px; height: 400px; background-color: green"></div>
<!DOCTYPE html>
<style>
html, body {
margin: 0;
}
</style>
<div style="width: 400px; height: 400px; background-color: green"></div>