Acid1, originally called the Box Acid Test, is a test page for

web browser A web browser, often shortened to browser, is an application for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's scr ...

s. It was developed in October 1998 and was important in establishing baseline

interoperability Interoperability is a characteristic of a product or system to work with other products or systems. While the term was initially defined for information technology or systems engineering services to allow for information exchange, a broader de ...

between early web browsers, especially for the Cascading Style Sheets 1.0 specification. As with

acid tests The Acid Tests were a series of parties held by author Ken Kesey primarily in the San Francisco Bay Area during the mid-1960s, centered on the use of and advocacy for the psychedelic drug LSD, commonly known as "acid". LSD was not made illega ...

for gold which produce a quick and obvious assessment of the quality of a piece of metal, the web acid tests were designed to produce a clear indication of a browser's compliance to

web standards Web standards are the formal, non-proprietary standards and other technical specifications that define and describe aspects of the World Wide Web. In recent years, the term has been more frequently associated with the trend of endorsing a set of st ...

History

Acid1 tests many features on one page against a reference image. Acid1 was developed by Todd Fahrner, who was frustrated with the lack of stringent tests to improve browser interoperability. After looking at tests developed by Braden McDaniel that used reference renderings to clarify the intended result, Fahrner developed a comprehensive test that resulted in a quirky-looking graphic. In 1999, the test was incorporated into the CSS1 test suite. The text used in Acid1 is an allusion to T. S. Eliot's poem

The Hollow Men "The Hollow Men" (1925) is a poem by the modernist writer T. S. Eliot. Like much of his work, its themes are overlapping and fragmentary, concerned with post–World War I Europe under the Treaty of Versailles, hopelessness, religious conversi ...

. Acid1 is included as an offline

Easter egg Easter eggs, also called Paschal eggs, are eggs that are decorated for the Christian holiday of Easter, which celebrates the resurrection of Jesus. As such, Easter eggs are commonly used during the season of Eastertide (Easter season). The ...

in Internet Explorer 5 for Mac OS, accessible by typing ' about: tasman', with the text replaced by the names of the developers. By early 2008, all major browsers passed the Acid1 test. Acid1 has served as inspiration for

Acid2 Acid2 is a webpage that tests web browsers' functionality in displaying aspects of HTML markup, CSS 2.1 styling, Portable Network Graphics, PNG images, and data URIs. The test page was released on 13 April 2005 by the Web Standards Project. The ...

and

Acid3 The Acid3 test is a web test page from the Web Standards Project that checks a web browser's compliance with elements of various web standards, particularly the Document Object Model (DOM) and JavaScript. If the test is successful, the results ...

References

{{Reflist

External links

The Acid1 Test

Original home of Acid1 on Todd Fahrner's website
Acid tests Web software Internet properties established in 1999 Test items de:Acid (Browsertests)#Acid sv:Acid webbläsartester#Acid1

History

See also

References

External links