Jsdiff and Prismjs

html, body { height: 100%; }
p { color: red; }
h2 { color: white }
.code { font-family: monospace; }
b.alert { color: green; }
button { border-radius: 50%; }
html, body { height: 100%; }
h2 { color: white }
input { font-family: serif; }
.code { font-family: monospace; }
b.alert { color: yellow; }
button { border-radius: 50%; }