<?xml version="1.0" encoding="utf-8"?> <!-- CSSStyleSheet interface --> <interface name="CSSStyleSheet" inherits="stylesheets::StyleSheet" id="CSS-CSSStyleSheet" since="DOM Level 2"> <descr> <p> The <code>CSSStyleSheet</code> interface is a concrete interface used to represent a CSS style sheet i.e., a style sheet whose content type is "text/css". </p> </descr> <attribute type="CSSRule" readonly="yes" name="ownerRule" id="CSS-CSSStyleSheet-ownerRule"> <descr> <p> If this style sheet comes from an <code>@import</code> rule, the <code>ownerRule</code> attribute will contain the <code>CSSImportRule</code>. In that case, the <code>ownerNode</code> attribute in the <code>StyleSheet</code> interface will be <code>null</code>. If the style sheet comes from an element or a processing instruction, the <code>ownerRule</code> attribute will be <code>null</code> and the <code>ownerNode</code> attribute will contain the <code>Node</code>. </p> </descr> </attribute> <attribute type="CSSRuleList" readonly="yes" name="cssRules" id="CSS-CSSStyleSheet-cssRules"> <descr> <p> The list of all CSS rules contained within the style sheet. This includes both <xspecref href="&css2;/syndata.html#q8">rule sets</xspecref> and <xspecref href="&css2;/syndata.html#at-rules">at-rules</xspecref>. </p> </descr> </attribute> <method name="insertRule" id="CSS-CSSStyleSheet-insertRule"> <descr> <p> Used to insert a new rule into the style sheet. The new rule now becomes part of the cascade. </p> </descr> <parameters> <param name="rule" type="DOMString" attr="in"> <descr> <p> The parsable text representing the rule. For rule sets this contains both the selector and the style declaration. For at-rules, this specifies both the at-identifier and the rule content. </p> </descr> </param> <param name="index" type="unsigned long" attr="in"> <descr> <p> The index within the style sheet's rule list of the rule before which to insert the specified rule. If the specified index is equal to the length of the style sheet's rule collection, the rule will be added to the end of the style sheet. </p> </descr> </param> </parameters> <returns type="unsigned long"> <descr> <p> The index within the style sheet's rule collection of the newly inserted rule. </p> </descr> </returns> <raises> <exception name="DOMException"> <descr> <p>HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at the specified index e.g. if an <code>@import</code> rule is inserted after a standard rule set or other at-rule.</p> <p>INDEX_SIZE_ERR: Raised if the specified index is not a valid insertion point.</p> <p>NO_MODIFICATION_ALLOWED_ERR: Raised if this style sheet is readonly.</p> <p>SYNTAX_ERR: Raised if the specified rule has a syntax error and is unparsable.</p> </descr> </exception> </raises> </method> <method name="deleteRule" id="CSS-CSSStyleSheet-deleteRule"> <descr> <p> Used to delete a rule from the style sheet. </p> </descr> <parameters> <param name="index" type="unsigned long" attr="in"> <descr> <p> The index within the style sheet's rule list of the rule to remove. </p> </descr> </param> </parameters> <returns type="void"> <descr><p></p></descr> </returns> <raises> <exception name="DOMException"> <descr> <p>INDEX_SIZE_ERR: Raised if the specified index does not correspond to a rule in the style sheet's rule list.</p> <p>NO_MODIFICATION_ALLOWED_ERR: Raised if this style sheet is readonly.</p> </descr> </exception> </raises> </method> </interface>