More properties and cleanup

src/commonMain/kotlin/nl/astraeus/css/properties/Measurement.kt

@@ -0,0 +1,49 @@
+package nl.astraeus.css.properties
+
+open class Measurement(
+    value: String
+) : CssProperty(value) {
+
+    companion object {
+        fun auto() = Measurement("auto")
+        fun initial() = Measurement("initial")
+        fun inherit() = Measurement("inherit")
+        fun px(nr: Int) = Measurement("${nr}px")
+        fun em(nr: Int) = Measurement("${nr}em")
+        fun em(nr: Double) = Measurement("${nr}em")
+        fun perc(nr: Int) = Measurement("${nr}%")
+        fun perc(nr: Double) = Measurement("${nr}%")
+        fun pc(nr: Int) = Measurement("${nr}pc")
+        fun pc(nr: Double) = Measurement("${nr}pc")
+        fun cm(nr: Int) = Measurement("${nr}cm")
+        fun cm(nr: Double) = Measurement("${nr}cm")
+    }
+}
+
+class FontSize(
+    value: String
+) : CssProperty(value) {
+
+    companion object {
+        fun xxSmall() = FontSize("xx-small")
+        fun xSmall() = FontSize("x-small")
+        fun small() = FontSize("small")
+        fun medium() = FontSize("medium")
+        fun large() = FontSize("large")
+        fun xLarge() = FontSize("x-large")
+        fun xxLarge() = FontSize("xx-large")
+        fun smaller() = FontSize("smaller")
+        fun larger() = FontSize("larger")
+        fun initial() = FontSize("initial")
+        fun inherit() = FontSize("inherit")
+        fun px(nr: Int) = FontSize("${nr}px")
+        fun em(nr: Int) = FontSize("${nr}em")
+        fun em(nr: Double) = FontSize("${nr}em")
+        fun perc(nr: Int) = FontSize("${nr}%")
+        fun perc(nr: Double) = FontSize("${nr}%")
+        fun pc(nr: Int) = FontSize("${nr}pc")
+        fun pc(nr: Double) = FontSize("${nr}pc")
+        fun cm(nr: Int) = FontSize("${nr}cm")
+        fun cm(nr: Double) = FontSize("${nr}cm")
+    }
+}