CSS Selector(berserkjs用到)

http://www.w3schools.com/cssref/css_selectors.asp

SelectorExampleExample descriptionCSS.class.introSelects all elements with class="intro"1#id#firstnameSelects the element with id="firstname"1**Selects all elements2elementpSelects all <p> elements1element,elementdiv, pSelects all <div> elements and all <p> elements1element elementdiv pSelects all <p> elements inside <div> elements1element>elementdiv > pSelects all <p> elements where the parent is a <div> element2element+elementdiv + pSelects all <p> elements that are placed immediately after <div> elements2element1~element2p ~ ulSelects every <ul> element that are preceded by a <p> element3[attribute][target]Selects all elements with a target attribute2[attribute=value][target=_blank]Selects all elements with target="_blank"2[attribute~=value][title~=flower]Selects all elements with a title attribute containing the word "flower"2[attribute|=value][lang|=en]Selects all elements with a lang attribute value starting with "en"2[attribute^=value]a[href^="https"]Selects every <a> element whose href attribute value begins with "https"3[attribute$=value]a[href$=".pdf"]Selects every <a> element whose href attribute value ends with ".pdf"3[attribute*=value]a[href*="w3schools"]Selects every <a> element whose href attribute value contains the substring "w3schools"3:activea:activeSelects the active link1::afterp::afterInsert something after the content of each <p> element2::beforep::beforeInsert something before the content of each <p> element2:checkedinput:checkedSelects every checked <input> element3:disabledinput:disabledSelects every disabled <input> element3:emptyp:emptySelects every <p> element that has no children (including text nodes)3:enabledinput:enabledSelects every enabled <input> element3:first-childp:first-childSelects every <p> element that is the first child of its parent2::first-letterp::first-letterSelects the first letter of every <p> element1::first-linep::first-lineSelects the first line of every <p> element1:first-of-typep:first-of-typeSelects every <p> element that is the first <p> element of its parent3:focusinput:focusSelects the input element which has focus2:hovera:hoverSelects links on mouse over1:in-rangeinput:in-rangeSelects input elements with a value within a specified range3:invalidinput:invalidSelects all input elements with an invalid value3:lang(language)p:lang(it)Selects every <p> element with a lang attribute equal to "it" (Italian)2:last-childp:last-childSelects every <p> element that is the last child of its parent3:last-of-typep:last-of-typeSelects every <p> element that is the last <p> element of its parent3:linka:linkSelects all unvisited links1:not(selector):not(p)Selects every element that is not a <p> element3:nth-child(n)p:nth-child(2)Selects every <p> element that is the second child of its parent3:nth-last-child(n)p:nth-last-child(2)Selects every <p> element that is the second child of its parent, counting from the last child3:nth-last-of-type(n)p:nth-last-of-type(2)Selects every <p> element that is the second <p> element of its parent, counting from the last child3:nth-of-type(n)p:nth-of-type(2)Selects every <p> element that is the second <p> element of its parent3:only-of-typep:only-of-typeSelects every <p> element that is the only <p> element of its parent3:only-childp:only-childSelects every <p> element that is the only child of its parent3:optionalinput:optionalSelects input elements with no "required" attribute3:out-of-rangeinput:out-of-rangeSelects input elements with a value outside a specified range3:read-onlyinput:read-onlySelects input elements with the "readonly" attribute specified3:read-writeinput:read-writeSelects input elements with the "readonly" attribute NOT specified3:requiredinput:requiredSelects input elements with the "required" attribute specified3:root:rootSelects the document's root element3::selection::selectionSelects the portion of an element that is selected by a user :target#news:targetSelects the current active #news element (clicked on a URL containing that anchor name)3:validinput:validSelects all input elements with a valid value3:visiteda:visitedSelects all visited links1