[css-overflow-3] tpyo

Author: tabatkins

css-overflow-3/Overview.bs

@@ -389,7 +389,7 @@ Scrollable Overflow: the 'overflow-x', 'overflow-y', and 'overflow' properties</
 	it creates a new <a>block formatting context</a> for its content.
 
 <h3 id="overflow-computed-values">
-Overflow Value Computation and Propgation</h3>
+Overflow Value Computation and Propagation</h3>
 
 		<p>The computed values of 'overflow-x' and 'overflow-y'
 		are determined from the <a>specified values</a> [[!CSS3CASCADE]]