Source code
Revision control
Copy as Markdown
Other Tools
<!DOCTYPE html>
<style>
#one::after {
content: "Fallback value";
}
#two::after {
content: "Not fallback value";
}
#three::after {
content: "";
}
#four::after {
content: "";
}
#five::after {
content: "";
}
#six::after {
content: "";
}
</style>
<div id="one"></div>
<div id="two"></div>
<div id="three"></div>
<div id="four"></div>
<div id="five"></div>
<div id="six"></div>