<?xml version="1.0" encoding="UTF-8"?> <!-- the CSSValueList interface --> <interface id="CSS-CSSValueList" name="CSSValueList" inherits="CSSValue" since="DOM Level 2"> <descr> <p>The <code>CSSValueList</code> interface provides the abstraction of an ordered collection of CSS values.</p> <p> Some properties allow an empty list into their syntax. In that case, these properties take the <code>none</code> identifier. So, an empty list means that the property has the value <code>none</code>. </p> <p> The items in the <code>CSSValueList</code> are accessible via an integral index, starting from 0. </p> </descr> <attribute id="CSS-CSSValueList-length" name="length" type="unsigned long" readonly="yes"> <descr> <p>The number of <code>CSSValues</code> in the list. The range of valid values of the indices is <code>0</code> to <code>length-1</code> inclusive.</p> </descr> </attribute> <method id="CSS-CSSValueList-item" name="item"> <descr> <p>Used to retrieve a <code>CSSValue</code> by ordinal index. The order in this collection represents the order of the values in the CSS style property. If index is greater than or equal to the number of values in the list, this returns <code>null</code>.</p> </descr> <parameters> <param name="index" type="unsigned long" attr="in"> <descr> <p>Index into the collection.</p> </descr> </param> </parameters> <returns type="CSSValue"> <descr> <p>The <code>CSSValue</code> at the <code>index</code> position in the <code>CSSValueList</code>, or <code>null</code> if that is not a valid index.</p> </descr> </returns> <raises> <!-- No exceptions --> </raises> </method> </interface>