D. A spike of electricity. They are fast and have a short duration.
Go to panel and select stylesheet. Hope this helped:)
Here is an HTML example with the CSS class defined inline:
<!doctype html>
<html>
<head>
<style>
.YellowBackground {
background-color : yellow;
}
</style>
</head>
<body class="YellowBackground">
<h1>A yellow background</h1>
</body>
</html>
Ok what's the code i will join