[cssom*] Bikeshed fixes

Author: Simon Pieters

cssom-view/Overview.bs

@@ -300,6 +300,11 @@ The term <dfn>layout box</dfn> refers to either a <a>CSS layout box</a> or an <a
 
 The term <dfn>transforms</dfn> refers to SVG transforms and CSS transforms. [[!SVG]] [[!CSS-TRANSFORMS-1]]
 
+When a method or an attribute is said to call another method or attribute, the user agent must invoke its internal API for that attribute or method so that
+e.g. the author can't change the behavior by overriding attributes or methods with custom properties or functions in ECMAScript.
+
+Unless otherwise stated, string comparisons are done in a <a>case-sensitive</a> manner.
+
 
 CSS pixels {#css-pixels}
 ------------------------