Do not lowercase all identifiers

[bartveneman]

Found in the wild, so this potentially breaks websites:

- font-family: Noto Sans,arial,helvetica,sans-serif;
+ font-family: noto sans, arial, helvetica, sans-serif;

- grid-area: emailInputbox;
+ grid-area: emailinputbox;

- -webkit-transform: translateZ(0);
- -moz-transform: translateZ(0);
- -ms-transform: translateZ(0);
- -o-transform: translateZ(0);
- transform: translateZ(0);
+ -webkit-transform: translatez(0);
+ -moz-transform: translatez(0);
+ -ms-transform: translatez(0);
+ -o-transform: translatez(0);
+ transform: translatez(0);

- color: currentColor;
+ color: currentcolor;

[bartveneman]

Some quick research:

• Custom Properties are case-sensitive: --myVar vs --myvar https://codepen.io/bartveneman/pen/BaMMJwP
• CSS functions are case-insensitive: RGBA() translatex() https://codepen.io/bartveneman/pen/dyaaJJR
• Regular CSS properties are case-insensitive
• CSS keywords are case-insensitive, except NaN: currentColor, AUTO https://codepen.io/bartveneman/pen/GRzzyOx
• URL's and src are case-sensitive: src: 'My-Url.css' or src: url('my-url.css')