is the concept that when a class of objects is defined, any subclass that is defined can inherit the definitions of one or more general classes.
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Tips for creating Web Page layout (list 5)
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Be intriguing from the very start,A logo is crucial,Keep the fancy stuff to a minimum,Don't be long winded,Fancy fonts should also be functional
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Name two benefits of using CSS?
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Consistency; Easy change management
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Portable Network Graphics (PNG)
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compressed bitmap file format (lossless) similar to the gif format; it is not limited to 256 colors, is appropriate for the web, and supports transparency
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browser-safe color palette
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a standard of 216 colors that would render consistently
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liquid layout
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sets the values using percentages for any columns and the overall width, and the percentage is determined by the user's browser window
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dithering
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inline images
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Code to align images: top
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align=top
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compression
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is minimizing the size in bytes of a graphics file without degrading the quality of the image to an unacceptable level.
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non-breaking space
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A tool used to keep selected text on a single line.
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<footer>
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Text that is printed at the bottom of each page.
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animation
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the way text and objects move on and off a slide during a slide show
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What is the code to stylize a horizontal rule?
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HR
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alternative text
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Textual descriptions of graphics and other design components on a web page; aids in search engine optimization
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hexadecimal
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The hexadecimal number system is base 16, using only digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.
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What is the code to align images to text?
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text-align
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What are 3 universally supported Web image formats?
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JPEG, GIF, BMP, TIFF and PNG
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font-family
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A complete set of characters, letters, and symbols for a particular typeface.
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Code to align images: left
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align=left
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selector
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An expression of the kind of content contained by a tag in HTML.
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Code to align images: middle
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align=middle
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What is the code to create an image on a Web page?
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img src
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transparency
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a visual quality in which a distant image or element can be seen through a nearer one
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hyperlink color (two types)
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red,blue
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font-size
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determines the height of characters in units called points
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interlacing
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Image loads an early degraded version of the whole image as soon as possible and then progressively renders the image to clear state.
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How do you create an ampersand using code?
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declares the beginning of an entity reference
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Describe differences in GIF 89a, JPEG, and PNG
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PNG supports 8-bit color like GIF, but also supports 24-bit color RGB, like JPG does. They are also non-lossy files, compressing photographic images without degrading image quality. PNG tends to be the biggest of the three filetypes and isn't supported by some (usually older) browsers
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<header>
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text that is printed at the top of each page
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GIF (Graphics Interchange Format)
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A graphic interchange format primarily used on the Internet.
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<nav>
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The <nav> element is intended only for major block of navigation links.
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<article>
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particular item or object, typically one of a specified type.
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<aside>
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A device in which a character in a drama makes a short speech which is heard by the audience but not by other characters in the play
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What are the two codes to adjust width and height of images?
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height="42" width="42"
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background image
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a graphic file used in place of a background color
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Code to align images: right
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align=right
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background color
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White by default, it is used to make gradient fills, and to fill in areas of an image that have been erased.
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font color
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The color of characters in a font set.
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How many versions of CSS are there?
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In a separate file (external) At the top of a web page document (internal) Right next to the text it decorates (inline)
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rule
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a statement of relation between concepts
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fixed-width layout
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Web document designed to fit a particular screen or monitor size.
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JPEG (Joint Photographic Experts Group)
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A compressed graphical file format that reduces the file size.