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selectors)When some element types, classes, and IDs all have common attributes, you can use the group selector to avoid repeated definitions multiple times. This can save a lot of bytes.For example, to define the font, color, and margin of all titles, you can write as follows:H1, h2, h3, h4, h5, h6 {Font-family: "Lucida Grande", Lucida, Arial, Helvetica, sans-se

I divided the Forum homepage into header area, information area, content area, footer area. First with a large div to include these, mainly considering the overall adjustment of the page, for example, to adjust to a widescreen or narrow screen, as long as the setting of this large div can be. First put the code out, for friends debugging use. Css: Copy CodeThe code is as follows: /* CSS Document */ body{ Background-color: #F5F5F5; margin:0; padding:0; font-family: "

types, classes, or IDs have some properties in common, you can use group selectors to avoid repeating definitions multiple times. This can save a lot of bytes.For example: Define the font, color, and margin for all headings, as you can write:H1,h2,h3,h4,h5,h6 {font-family: "Lucida Grande", Lucida,arial,helvetica,sans-serif;Color: #333;Margin:1em 0;}If you have a

properties in common, you can use group selectors to avoid repeating definitions multiple times. This can save a lot of bytes.For example: Define the font, color, and margin for all headings, as you can write:H1,h2,h3,h4,h5,h6 {font-family: "Lucida Grande", Lucida,arial,helvetica,sans-serif;Color: #333;Margin:1em 0;}If you have an individual element that needs t

number of bytes, we recommend that you do not quote the path of the background image because the quotation marks are not required. For example: Program code background: url (images/***. gif) #333; can be written: Program code background: url (images/***. gif) #333; If you add quotation marks, some browser errors may occur. 11. Group selectors) When some element types, classes, and IDs all have common attributes, you can use the group selector to avoid repeated definitions multiple times.

-width semicolon, colon Gungsuhche 43 Clear 1, Letter lowercase L and 1 2, full-width semicolon, colon and half-width semicolon, colon Lucida Console 43 Clear 1, Letter o and number 0 2, full-width double quotes and half-width double quotes Lucida Sans Typewriter

*/} You can use the following method to replace the above Code The style definition is: # Subnav {/* some styling */}# Subnav Li {/* some styling */}# Subnav A {/* some styling */}# Subnav. Sel {/* some styling */}# Subnav. Sel A {/* some styling */} Using a sub-selector can make your code and CSS more concise and easier to read. 10. Do not quote the background image path To reduce the number of bytes, we recommend that you do not quote the path of the background image because the qu

] + "_ child "). style. height = "0px ";}}@ Charset "UTF-8 ";/* Css definition */Body {Background: #5c90d9;/* background color of the entire webpage */}/*. Tit is the title style of each menu. list is the style of the menu item */. Tit,. list {width: 183px;/* width of the menu */} . Tit {/* Style of menu title */Height: 22px;Border: 1px solid # 2a4dab;/* border color */Border-bottom-style: none;/* No bottom border */Background: # 547DBE url (images/menu_head_bg.gif)

quotation marks, some browser errors may occur. 11. Group selectors)When some element types, classes, and IDs all have common attributes, you can use the group selector to avoid repeated definitions multiple times. This can save a lot of bytes.For example, to define the font, color, and margin of all titles, you can write as follows: H1, H2, H3, H4, H5, H6 {Font-family: lucida Grande, lucida, Arial, Helvet

make your code and CSS more concise and easier to read. 10. Do not quote the background image pathTo reduce the number of bytes, we recommend that you do not quote the path of the background image because the quotation marks are not required. For example:Background: URL ("images/***. GIF") #333;Can be writtenBackground: URL (images/***. GIF) #333;If you add quotation marks, some browser errors may occur. 11. Group selectors)When some element types, classes, and IDs all have common attributes

marks are not required. For example: Program code Background: URL (images/***. GIF) #333; It can be written as follows: Program code Background: URL (images/***. GIF) #333; If you add quotation marks, some browser errors may occur. 11. Group selectors) When some element types, classes, and IDs all have common attributes, you can use the group selector to avoid repeated definitions multiple times. This can save a lot of bytes. For example, to define the font, color, and margin of all tit