Specify lowercase or uppercase for units.
a { width: 10px; } /** ↑ * These units */
The fix option can automatically fix most of the problems reported by this rule.
string: "lower"|"upper"
"lower"The following patterns are considered violations:
a { width: 10PX; }
a { width: 10Px; }
a { width: 10pX; }
a { width: 10PIXEL; }
a { width: calc(10PX * 2); }
The following patterns are not considered violations:
a { width: 10px; }
a { width: calc(10px * 2); }
"upper"The following patterns are considered violations:
a { width: 10px; }
a { width: 10Px; }
a { width: 10pX; }
a { width: 10pixel; }
a { width: calc(10px * 2); }
The following patterns are not considered violations:
a { width: 10PX; }
a { width: calc(10PX * 2); }