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Spring 2009 Kevin Cole Gallaudet University 2009.02.05
Web Design I Spring 2009 Kevin Cole Gallaudet University
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Uniform Resource Locator (URL)
http: protocol //dc.ubuntu-us.org/ web server computer name resources/ folder name tutorials/ folder name lab-tips.html file name Web browsers (Microsoft Internet Explorer, Firefox, Safari, Opera, Konqueror, Chrome, etc.) usually communicate with computers called web servers. Some web servers do more than just provide web pages. When a web browser requests a page from a computer, the protocol identifies what type of of "service" is being requested. For our class, the only important one is the HyperText Transport Protocol (HTTP) Other common protocols are https (secure), ftp (file transfer protocol), rss (really simple syndication) All computers on the Internet have a unique name and a number called an IP address Folders and file names are like on your computers.
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links.html <html> <head> <title>Links</title>
<body> <h1>Links</h1> <p><img src="picture1.png" alt="Portrait placeholder" /> In the same folder.</p> <p><img src=" alt="First Pets" /> On another web site.</p> <p><a href=" about the White House.</a></p> </body> </html> src="filename.png" or src="filename.jpg" or href="filename.html" means the image file or HTML page is on the same comptuer and in the same folder as links.html. src=" or href=" means the image file or html page is on a web server (usually not the same computer as the links.html file.) src="/foldername/filename.png" or href="/foldername/filename.html" means on the same computer but in a different folder. The second image is actually from:
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links.html
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Colors Mixing red, green and blue (RGB) Values range from 00 to ff
# means R=00, G=00, B=00 BLACK #ff means R=ff, G=00, B=00 RED #7f0000 means R=7f, G=00, B=00 DARK RED #ff00ff means R=ff, G=00, B=ff MAGENTA #ffffff means R=ff, G=ff, B=ff WHITE #00ff00 means R=00, G=ff, B=00 GREEN Counting in hexadecimal: After you reach 9, instead of counting 10, 11, you count a, b, c, d, e, f, 10, 11, 12... After you reach 99, counting is 9a, 9b, 9c... a is ten, b is eleven, c is twelve, d is thirteen, e is fourteen, f is fifteen, 10 is sixteen. a0 is ten times sixteen, b0 is eleven times sixteen, cb is (twelve times sixteen) plus eleven. This will become easier with practice. Also many web sites provide charts to help. R, G and B range from zero (00) to two hundred and fifty-five (ff) = (fifteen times sixteen) plus fifteen.
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Color help http://www.2createawebsite.com/build/hex-colors.html
Google "hex color chart" Many colors also have logical names (for example, "#ff0000" is the same as "red") (only 16 of the 150 listed are offical standard names, but most browsers understand all 150 color names)
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