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HTML - Introduction
Transcript of HTML - Introduction
will use in your site. Testing —After each page is created, you will need to test it on one or more different browsers to make sure it looks and acts like you want it to. You can do the initial testing off-line, on your computer and correct any mistakes before you publish Publishing —Publishing a web site is similar to publishing a book…you make it
available to anyone who wants to see it by uploading , or moving your finished
page (or pages) from your computer to a web server. A web server is simply a
computer whose job it is to send the file to any computer asking to look at it. In creating complicated web pages, it's not unusual for the web page creator to write part of the page, test it, and then write more. The writing and testing stages of the
web development cycle usually take the most amount of time. Tags What makes HTML documents different than ordinary ones is that formatting
commands are written into the file. These commands, called tags , tell the browser
how to display the document. You can think of a browser as an obedient, very bright, but very literal, child. It will
do what you say exactly the way you say to do it. It “knows how” to do many
complicated things, but you must tell it explicitly to do something or the results will
not be what you think they should be. You can tell which words are tags in HTML because they have angle brackets around
them,<>. Angle bracket look like "Less than" and greater than signs. These bracket tell your web browser to use these command to interpret and display your page. The angle brackets are followed by the name of the tag itself. While most browsers do not "see" a difference between tags written in uppercase and those written in lowercase, it is considered "good practice" to write your tags in lowercase. After the tag and within the angle brackets you may find information that modifies the tag or gives specific information that the browser needs to execute the tag. This information is called an attribute. Most tags have a few attributes, many of them optional. Attributes usually need further information, called values . Values can be numerical (percentages or measurements) or a specific set of words (“left,” “right,” or “center.”) With a few exceptions, values are always surrounded by double quotes. For nearly every tag, there is an equivalent closing tag . Closing tags tell the browser
when to stop doing something. For example, the closing paragraph tag tells thebrowser where the end of the paragraph is. Document Tags HTML The Introduction