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alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap cssFloat font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex
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<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <td> <th> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

Other References

CSSStyleDeclaration JS Conversion

HTML DOM getElementsByTagName() Method

❮ Document Object


Get all elements in the document with the specified tag name:

var x = document.getElementsByTagName("LI");
Try it Yourself »

More "Try it Yourself" examples below.

Definition and Usage

The getElementsByTagName() method returns a collection of all elements in the document with the specified tag name, as a NodeList object.

The NodeList object represents a collection of nodes. The nodes can be accessed by index numbers. The index starts at 0.

Tip: The parametervalue "*" returns all elements in the document.

Tip: You can use the length property of the NodeList object to determine the number of elements with the specified tag name, then you can loop through all elements and extract the info you want.

Browser Support

The numbers in the table specifies the first browser version that fully supports the method.

getElementsByTagName() 1.0 6.0 3.0 3.0 9.5



Parameter Values

Parameter Type Description
tagname String Required. The tagname of the elements you want to get

Technical Details

DOM Version: Core Level 1 Document Object
Return Value: A NodeList object, representing a collection of elements with the specified tag name. The elements in the returned collection are sorted as they appear in the source code.

More Examples


Find out how many <li> elements there are in the document (using the length property of the NodeList object):

var x = document.getElementsByTagName("LI").length;
Try it Yourself »


Change the HTML content of the first <p> element (index 0) in the document:

document.getElementsByTagName("P")[0].innerHTML = "Hello World!";
Try it Yourself »


Change the background color of all <p> elements in the document:

var x = document.getElementsByTagName("P");
var i;
for (i = 0; i < x.length; i++) {
  x[i].style.backgroundColor = "red";
Try it Yourself »


Using the "*" parameter.

Get all elements in the document:

var x = document.getElementsByTagName("*");
Try it Yourself »

Related Pages

JavaScript Reference: element.getElementsByTagName()

JavaScript Tutorial: JavaScript HTML DOM Node List

❮ Document Object