Update index.html

Author: LanWei22

index.html

@@ -8788,10 +8788,10 @@ <h4>Wheel actions</h4>
   return <a>error</a> with error code <a>move target out of
   bounds</a>.
 
- <li><p>Let <var>delta x</var> be equal to the <code>delta x</code>
+ <li><p>Let <var>delta x</var> be equal to the <code>deltaX</code>
   property of <var>action object</var>.
 
- <li><p>Let <var>delta y</var> be equal to the <code>delta y</code>
+ <li><p>Let <var>delta y</var> be equal to the <code>deltaY</code>
   property of <var>action object</var>.
 
  <li><p>Let <var>duration</var> be equal to
@@ -8804,8 +8804,8 @@ <h4>Wheel actions</h4>
   implementation defined amount of time to pass.
 
   <aside><p>This wait allows the implementation to model the overall
-   pointer move as a series of small movements occurring at an
-   implementation defined rate (e.g. one movement per
+   wheel scroll as a series of small scroll occurring at an
+   implementation defined rate (e.g. one scroll per
    vsync).</p></aside>
  </li>
 
@@ -8836,10 +8836,10 @@ <h4>Wheel actions</h4>
   let <var>last</var> be true. Otherwise let <var>last</var>
   be <code>false</code>.
 
- <li><p>Let <var>current delta x</var> equal the <code>delta x</code>
+ <li><p>Let <var>current delta x</var> equal the <code>deltaX</code>
   property of <var>input state</var>.
 
- <li><p>Let <var>current delta y</var> equal the <code>delta y</code>
+ <li><p>Let <var>current delta y</var> equal the <code>deltaY</code>
   property of <var>input state</var>.
 
  <li><p>If <var>last</var> is true, let <var>delta x</var> equal
@@ -8862,17 +8862,17 @@ <h4>Wheel actions</h4>
    <li><p><a>Perform implementation-specific
     action dispatch steps</a> equivalent to wheel scroll with
     ID <var>source id</var> at viewport x coordinate <var>x</var>,
-    viewport y coordinate <var>y</var>, <var>delta x</var>,
-    <var>delta y</var>, in accordance with the
+    viewport y coordinate <var>y</var>, deltaX value <var>delta x</var>,
+    deltaY value <var>delta y</var>, in accordance with the
     requirements of [[UI-EVENTS]].
 
    <li><p>Let <var>input state</var>’s <code>x</code> property
     equal <var>x</var> and <code>y</code> property
     equal <var>y</var>.
 
-   <li><p>Let <var>input state</var>’s <code>delta x</code> property
+   <li><p>Let <var>input state</var>’s <code>deltaX</code> property
     equal <var>delta x</var>  + <var>current delta x</var> and
-    <code>delta y</code> property equal
+    <code>deltaY</code> property equal
     <var>delta y</var>  + <var>current delta y</var>.	   
   </ol>
 
@@ -8905,8 +8905,8 @@ <h4>Wheel actions</h4>
 
    <li><p><a>Perform a scroll</a> with arguments
     <var>source id</var>, <var>input state</var>, <var>duration</var>,
-    <var>x</var>, <var>y</var>, <var>delta x</var>, <var>delta y</var>,
-    <var>target delta x</var>, <var>target delta y</var>.
+    <var>x</var>, <var>y</var>, <var>target delta x</var>,
+    <var>target delta y</var>.
  </ol>
 
 </ol>