<a>

현재 번역은 완벽하지 않습니다. 한국어로 문서 번역에 동참해주세요.

개요

HTML <a> 요소 (HTML 앵커 요소) 는 하이퍼링크를 정의합니다.

속성

이 요소는  전역 속성을 포함합니다.

download HTML5
이 속성이 존재할경우, 작성자가 하이퍼링크가 리소스를 다운로드 하는데에 쓰이도록 의도(유저가 링크를 클릭하면 즉각적으로 로컬 저장소에 다운로드 되도록) 한다는것을 나타냅니다. 만약 이 속성이 값을 가질경우, 유저가 링크를 클릭하고 나오는 저장창에 미리 채워진 파일 이름의 값으로 사용됩니다. (특정 경로를 암시하는것을 막기위해 /와 \는 밑줄로 변환되긴 하지만) 값에 어떠한 제한도 없습니다. 하지만  you should consider that most file systems have limitations with regard to what punctuation is supported in file names, and browsers are likely to adjust file names accordingly.

참고:

  • Can be used with blob: URLs and data: URLs, to make it easy for users to download content that is generated programmatically using JavaScript (e.g. a picture created using an online drawing Web app).
  • If the HTTP header Content-Disposition: is present and gives a different filename than this attribute, the HTTP header has priority over this attribute.
  • If this attribute is present and Content-Disposition: is set to inline, Firefox gives priority to Content-Disposition, like for the filename case, while Chrome gives priority to the download attribute.
  • In Firefox 20 this attribute is only honored for links to resources with the same-origin.
href
This was the single required attribute for anchors defining a hypertext source link, but is no longer required in HTML5. Omitting this attribute creates a placeholder link. The href attribute indicates the link target, either a URL or a URL fragment. A URL fragment is a name preceded by a hash mark (#), which specifies an internal target location (an ID) within the current document. URLs are not restricted to Web (HTTP)-based documents. URLs might use any protocol supported by the browser. For example, file, ftp, and mailto work in most user agents.

참고: You can use the special fragment "top" to create a link back to the top of the page; for example <a href="#top">Return to top</a>. This behavior is specified by HTML5.

media HTML5
This attribute specifies the media which the linked resource applies to. Its value must be a media query. This attribute is mainly useful when linking to external stylesheets by allowing the user agent to pick the best adapted one for the device it runs on.

사용시 참고:

  • In HTML 4, only simple white-space-separated list of media description literals, i.e. media types and groups, where defined and allowed as values for this attribute, like print, screen, aural, braille, ... HTML 5 extended this to any kind of media queries, which are a superset of the allowed values of HTML 4.
  • Browsers not supporting the CSS3 Media Queries won't necessarily recognize the adequate link; do not forget to set fallback links, the restricted set of media queries defined in HTML 4.
ping HTML5
이 속성이 존재할 경우, 유저가 하이퍼링크를 따라갔을때, 리소스의 URL에 notification/ping을 보냅니다.
rel
For anchors containing the href attribute, this attribute specifies the relationship of the target object to the link object. The value is a comma-separated list of link types values. The values and their semantics will be registered by some authority that might have meaning to the document author. The default relationship, if no other is given, is void. Use this attribute only if the href attribute is present.
target
이 속성은 링크된 리소스를 어디에 표시할지를 나타냅니다. In HTML4, this is the name of, or a keyword for, a frame. In HTML5, it is a name of, or keyword for, a browsing context (for example, tab, window, or inline frame). The following keywords have special meanings:
  • _self: Load the response into the same HTML4 frame (or HTML5 browsing context) as the current one. This value is the default if the attribute is not specified.
  • _blank: Load the response into a new unnamed HTML4 window or HTML5 browsing context.
  • _parent: Load the response into the HTML4 frameset parent of the current frame or HTML5 parent browsing context of the current one. If there is no parent, this option behaves the same way as _self.
  • _top: In HTML4: Load the response into the full, original window, canceling all other frames. In HTML5: Load the response into the top-level browsing context (that is, the browsing context that is an ancestor of the current one, and has no parent). If there is no parent, this option behaves the same way as _self.
Use this attribute only if the href attribute is present.
charset 안씀 HTML5
이 속성은 링크된 리소스의 문자 인코딩을 정의합니다.  The value is a space- and/or comma-delimited list of character sets as defined in RFC 2045. The default value is ISO-8859-1.

사용시 참고: 이 속성은 HTML5에서 폐기되었으며 작성자에 의해 사용되어서는 안됩니다. 이 효과를 내려면 링크된 리소스에 HTTP Content-Type 헤더를 사용하세요

coords HTML 4 only, 안씀 HTML5
For use with object shapes, this attribute uses a comma-separated list of numbers to define the coordinates of the object on the page.
datafld
This attribute specifies the column name from that data source object that supplies the bound data.

사용시 참고: This attribute is non-standard and should not be used by authors. To achieve its effect, use scripting and a mechanism such as XMLHttpRequest to populate the page dynamically

지원 Gecko Presto WebKit Trident
구현되지 않음 구현되지 않음 구현되지 않음음 IE4, IE5, IE6, IE7 (IE8에서 삭제됨)
표준 문서 Microsoft's Data Binding: dataFld Property (MSDN)
datasrc
This attribute indicates the ID of the data source object that supplies the data that is bound to this element.

사용시 참고: This attribute is non-standard and should not be used by authors. To achieve its effect, use scripting and a mechanism such as XMLHttpRequest to populate the page dynamically.

지원 Gecko Presto WebKit Trident
구현되지 않음 구현되지 않음 구현되지 않음 IE4, IE5, IE6, IE7 (IE8에서 삭제됨)
표준 문서 Microsoft's Data Binding: dataSrc Property (MSDN)
hreflang
이 속성은 링크된 리소스의 언어를 나타냅니다. It is purely advisory. Allowed values are determined by BCP47 for HTML5 and by RFC1766 for HTML4. Use this attribute only if the href attribute is present.
methods
The value of this attribute provides information about the functions that might be performed on an object. The values generally are given by the HTTP protocol when it is used, but it might (for similar reasons as for the title attribute) be useful to include advisory information in advance in the link. For example, the browser might choose a different rendering of a link as a function of the methods specified; something that is searchable might get a different icon, or an outside link might render with an indication of leaving the current site. This attribute is not well understood nor supported, even by the defining browser, Internet Explorer 4. Methods Property (MSDN)
name HTML 4 only, 안씀 HTML5
This attribute is required in an anchor defining a target location within a page. A value for name is similar to a value for the id core attribute and should be an alphanumeric identifier unique to the document. Under the HTML 4.01 specification, id and name both can be used with the <a> element as long as they have identical values.

사용시 참고: 이 속성은 HTML5에서 폐기되었습니다. 대신에 전역 속성 id를 사용하세요d.

rev HTML 4 only, 안씀 HTML5
This attribute specifies a reverse link, the inverse relationship of the rel attribute. It is useful for indicating where an object came from, such as the author of a document.
shape HTML 4 only, 안씀 HTML5
This attribute is used to define a selectable region for hypertext source links associated with a figure to create an image map. The values for the attribute are circle, default, polygon, and rect. The format of the coords attribute depends on the value of shape. For circle, the value is x,y,r where x and y are the pixel coordinates for the center of the circle and r is the radius value in pixels. For rect, the coords attribute should be x,y,w,h. The x,y values define the upper-left-hand corner of the rectangle, while w and h define the width and height respectively. A value of polygon for shape requires x1,y1,x2,y2,... values for coords. Each of the x,y pairs defines a point in the polygon, with successive points being joined by straight lines and the last point joined to the first. The value default for shape requires that the entire enclosed area, typically an image, be used.
참고: It is advisable to use the usemap attribute for the <img> element and the associated <map> element to define hotspots instead of the shape attribute.
type
This attribute specifies the media type in the form of a MIME type for the link target. Generally, this is provided strictly as advisory information; however, in the future a browser might add a small icon for multimedia types. For example, a browser might add a small speaker icon when type is set to audio/wav. For a complete list of recognized MIME types, see http://www.w3.org/TR/html4/references.html#ref-MIMETYPES. Use this attribute only if the href attribute is present.
urn
This supposedly Microsoft-supported attribute relates a uniform resource name (URN) with the link. While it is based on standards work years back, the meaning of URNs is still not well defined, so this attribute is meaningless. urn Property (MSDN)

예제: 외부 위치로 링킹하기

<!-- 외부 파일로 링킹된 앵커 -->
<a href="http://www.mozilla.com/">
External Link
</a>

결과

External Link

예제: 클릭 가능한 이미지 생성하기

이 작은 예제는 MDN 홈페이지로 링크하기 위해 이미지를 사용합니다. 홈페이지는 새로운 브라우징 컨텍스트(새탭,새창)에서 열릴것입니다.

<a href="https://developer.mozilla.org/en-US/" target="_blank">
  <img src="https://mdn.mozillademos.org/files/6851/mdn_logo.png" alt="MDN logo" />
</a>

결과

예제: 이메일 링크 생성하기

It's common to create buttons or links that will open in the user's email program to allow them to send a new message. This is done by using a mailto link. Here's a simple example:

<a href="mailto:nowhere@mozilla.org">Send email to nowhere</a>

This results in a link that looks like this: Send email to nowhere.

For additional details about the mailto URL scheme, such as how to include the subject, body, or other predetermined content, see Email links or RFC 6068.

예제: canvas를 PNG로 저장하기 위해download 속성 사용하기

유저가 HTML Canvas를 이미지로 다운받을수 있도록 하려면 파일 URL을 canvas 데이터로 하고 download 속성을 가지는 링크를 생성하면 됩니다.

var link = document.createElement('a');
link.innerHTML = 'download image';
link.addEventListener('click', function(ev) {
    link.href = canvas.toDataURL();
    link.download = "mypainting.png";
}, false);
document.body.appendChild(link);

You can see this in action http://jsfiddle.net/codepo8/V6ufG/2/

사양

사양 상태 주석
WHATWG HTML Living Standard
The definition of '<a>' in that specification.
Living Standard  
HTML5
The definition of '<a>' in that specification.
Recommendation  
HTML 4.01 Specification
The definition of '<a>' in that specification.
Recommendation  

브라우저 적합성

기능 Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) 1.0 (1.7 or earlier) (Yes) (Yes) (Yes)
href="#top" (Yes) 10.0 (10.0) (Yes) (Yes) (Yes)
download 14 20.0 (20.0) Not supported 15 Not supported
ping (Yes) Disabled by default Not supported (Yes) Not supported
기능 Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) 1.0 (1.0) (Yes) (Yes) (Yes)
href="#top" (Yes) 10.0 (10.0) (Yes) (Yes) (Yes)
download (Yes) 20.0 (20.0) Not supported ? Not supported
ping   Disabled by default      

클릭과 포커스

Whether clicking on an <a> causes it to (by default) become focused varies by browser and OS.

<a>를 클릭하는것이 포커스를 주나요?
데스크탑 브라우저 Windows 8.1 OS X 10.9
Firefox 30.0
Chrome ≥39
(Chromium bug 388666)
Safari 7.0.5 N/A tabindex를 소유할 경우에만
Internet Explorer 11 N/A
Presto (Opera 12)
<a>를 탭하는것이 포커스를 주나요?
모바일 브라우저 iOS 7.1.2 Android 4.4.4
Safari Mobile tabindex를 소유할 경우에만 N/A
Chrome 35 ??? tabindex를 소유할 경우에만

참고

The following are reserved browser key bindings for the two major browsers and should not be used as values to accesskey: a, c, e, f, g, h, v, left arrow, and right arrow.

HTML 3.2 defines only name, href, rel, rev, and title.

The target attribute is not defined in browsers that do not support frames, such as Netscape 1 generation browsers. Furthermore, target is not allowed under strict variants of XHTML but is limited to frameset or transitional forms.

JavaScript recommendations

It is often the case that an anchor tag is used with the onclick event. In order to prevent the page from refreshing, href is often set to either "#" or "javascript:void(0)". Both of these values can lead to some unexpected errors when copying links and opening links in a new tab and/or window. Be aware of this for usability reasons, and when users do use anchor tags and you prevent default behavior.

같이 보기

문서 태그 및 공헌자

Contributors to this page: Basix, azunyan3, lovefield, teoli, Jeongkyu
최종 변경: Basix,