Web開發者不容錯過的20段CSS代碼

1. CSS Resets

網絡上關於CSS重置的代碼很是多。本段代碼是根據Eric Meyer’s reset codes進行改編的,裏面包含一點響應式圖片和全部核心元素的邊界框設置,這樣就能夠保持頁邊距和填充能夠很好地對齊。
css


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html, body, div, span, applet, object, iframe, h 1 , h 2 , h 3 , h 4 , h 5 , h 6 , p, blockquote, pre , a, abbr, acronym, address, big, cite, code , del, dfn, em, img, ins, kbd, q, s, samp, small , strike, strong, sub , sup, tt, var, b, u, i, center , dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption , tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed , figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
margin : 0 ;
padding : 0 ;
border : 0 ;
font-size : 100% ;
font : inherit;
vertical-align : baseline ;
outline : none ;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
html { height : 101% ; }
body { font-size : 62.5% ; line-height : 1 ; font-family : Arial , Tahoma , sans-serif ; }
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display : block ; }
ol, ul { list-style : none ; }
blockquote, q { quotes : none ; }
blockquote:before, blockquote:after, q:before, q:after { content : '' ; content : none ; }
strong { font-weight : bold ; }
table { border-collapse : collapse ; border-spacing : 0 ; }
img { border : 0 ; max-width : 100% ; }
p { font-size : 1.2em ; line-height : 1.0em ; color : #333 ; }


2.經典的CSS Clearfixhtml

這個clearfix代碼已在Web開發者之間普遍流傳,這段類選擇器要應用到持有浮動元素的容器中,確保後面的內容都不會浮動,但會被下推和清除。web


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.clearfix:after { content : "." ; display : block ; clear : both ; visibility : hidden ; line-height : 0 ; height : 0 ; }
.clearfix { display : inline- block ; }
<font></font>
html[xmlns] .clearfix { display : block ; }
* html .clearfix { height : 1% ; }



3.升級版的Clearfix

在表現上,新版本和經典版本不存在什麼差別,這些類能夠有效地清除全部floats,但它們只兼容現代瀏覽器和傳統的IE 6-8。
canvas

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.clearfix:before, .container:after { content : "" ; display : table; }<font></font>
.clearfix:after { clear : both ; }
/* IE 6/7 */
.clearfix { zoom: 1 ; }



4. Cross-Browser Transparency

CSS3裏的許多屬性都與瀏覽器相兼容,但也有特例,好比opacity,須要對它進行一些更新才能夠。附加過濾屬性能夠兼容任何老版的IE瀏覽器。
瀏覽器

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. transparent {
filter: alpha(opacity= 50 ); /* internet explorer */
-khtml-opacity: 0.5 ;     /* khtml, old safari */
-moz-opacity: 0.5 ;       /* mozilla, netscape */
opacity: 0.5 ;           /* fx, safari, opera */
}
源碼地址: http://perishablepress.com/cross-browser-transparency-via-css/


5. CSS Blockquote模板

這段代碼主要用在頁面上進行分離引用或複製內容,而且給頁面文字提供了默認樣式。
ruby


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blockquote {
background : #f9f9f9 ;<
border-left : 10px solid #ccc ;
margin : 1.5em 10px ;
padding : . 5em 10px ;
quotes : "\201C" "\201D" "\2018" "\2019" ;
}
blockquote:before {
color : #ccc ;
content : open-quote ;
font-size : 4em ;
line-height : . 1em ;
margin-right : . 25em ;
vertical-align : -. 4em ;
}
blockquote p {
display : inline ;
}
查看源碼: http://css-tricks.com/snippets/css/simple-and-nice-blockquote-styling/


6. 個性化的圓角代碼

許多CSS開發者都很是熟悉圓角語法,但如何爲每一個角設置不一樣的值?不如看看下面這段代碼吧!
網絡


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#container {
-webkit-border-radius: 4px 3px 6px 10px ;
-moz-border-radius: 4px 3px 6px 10px ;
-o-border-radius: 4px 3px 6px 10px ;
border-radius: 4px 3px 6px 10px ;
}
/* alternative syntax broken into each line */
#container {
-webkit-border-top-left-radius: 4px ;
-webkit-border-top-rightright-radius: 3px ;
-webkit-border-bottom-rightright-radius: 6px ;
-webkit-border-bottom-left-radius: 10px ;
-moz-border-radius-topleft: 4px ;
-moz-border-radius-topright: 3px ;
-moz-border-radius-bottomright: 6px ;
-moz-border-radius-bottomleft: 10px ;
}


7. 通常媒體查詢

這是一段很是好的模板,用於各類零零碎碎的媒體查詢,在移動設備上也可使用,這段代碼甚至能夠經過使用min-device-pixel-ratio引用到視網膜設備上。
app


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/* Smartphones (portrait and landscape) ----------- */
@media only screen
and (min-device-width : 320px ) and (max-device-width : 480px ) {
/* Styles */
}
/* Smartphones (landscape) ----------- */
@media only screen and (min-width : 321px ) {
/* Styles */
}
/* Smartphones (portrait) ----------- */
@media only screen and (max-width : 320px ) {
/* Styles */
}
/* iPads (portrait and landscape) ----------- */
@media only screen and (min-device-width : 768px ) and (max-device-width : 1024px ) {
/* Styles */
}
<font></font>
/* iPads (landscape) ----------- */
@media only screen and (min-device-width : 768px ) and (max-device-width : 1024px ) and (orientation : landscape ) {
/* Styles */
}
/* iPads (portrait) ----------- */
@media only screen and (min-device-width : 768px ) and (max-device-width : 1024px ) and (orientation : portrait ) {
/* Styles */
}  
/* Desktops and laptops ----------- */
@media only screen and (min-width : 1224px ) {
/* Styles */
}
/* Large screens ----------- */
@media only screen and (min-width : 1824px ) {
/* Styles */
}
/* iPhone 4 ----------- */
@media only screen and (-webkit-min-device-pixel-ratio: 1.5 ), only screen and (min-device-pixel-ratio: 1.5 ) {
/* Styles */
}
源碼地址: http://css-tricks.com/snippets/css/media-queries-for-standard-devices/


8. 現代字體棧

在新網頁上設計屬於本身的字體棧仍是件比較困難的事情,但願下面這段代碼能給你帶來啓發和開發模板,關於更多字體棧源碼,你能夠訪問CSS Font Stacks
ide


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/* Times New Roman-based serif */
font-family : Cambria, "Hoefler Text" , Utopia, "Liberation Serif" , "Nimbus Roman No9 L Regular" , Times, "Times New Roman" , serif ;
/* A modern Georgia-based serif */
font-family : Constantia, "Lucida Bright" , Lucidabright, "Lucida Serif" , Lucida, "DejaVu Serif," "Bitstream Vera Serif" , "Liberation Serif" , Georgia, serif ;
/*A more traditional Garamond-based serif */
font-family : "Palatino Linotype" , Palatino, Palladio, "URW Palladio L" , "Book Antiqua" , Baskerville, "Bookman Old Style" , "Bitstream Charter" , "Nimbus Roman No9 L" , Garamond, "Apple Garamond" , "ITC Garamond Narrow" , "New Century Schoolbook" , "Century Schoolbook" , "Century Schoolbook L" , Georgia, serif ;
/*The Helvetica/Arial-based sans serif */
font-family : Frutiger, "Frutiger Linotype" , Univers, Calibri, "Gill Sans" , "Gill Sans MT" , "Myriad Pro" , Myriad, "DejaVu Sans Condensed" , "Liberation Sans" , "Nimbus Sans L" , Tahoma , Geneva, "Helvetica Neue" , Helvetica , Arial , sans-serif ;
/*The Verdana-based sans serif */
font-family : Corbel, "Lucida Grande" , "Lucida Sans Unicode" , "Lucida Sans" , "DejaVu Sans" , "Bitstream Vera Sans" , "Liberation Sans" , Verdana , "Verdana Ref" , sans-serif ;
/*The Trebuchet-based sans serif */
font-family : "Segoe UI" , Candara, "Bitstream Vera Sans" , "DejaVu Sans" , "Bitstream Vera Sans" , "Trebuchet MS" , Verdana , "Verdana Ref" , sans-serif ;
/*The heavier 「Impact」 sans serif */
font-family : Impact, Haettenschweiler, "Franklin Gothic Bold" , Charcoal, "Helvetica Inserat" , "Bitstream Vera Sans Bold" , "Arial Black" , sans-serif ;
/*The monospace */
font-family : Consolas, "Andale Mono WT" , "Andale Mono" , "Lucida Console" , "Lucida Sans Typewriter" , "DejaVu Sans Mono" , "Bitstream Vera Sans Mono" , "Liberation Mono" , "Nimbus Mono L" , Monaco, "Courier New" , Courier , monospace ;


源碼地址: http://www.sitepoint.com/eight-definitive-font-stacks/


9. 自定義文本選擇

一些新的Web瀏覽器容許你在網頁上自定義一些突出顯示的顏色,下面代碼的默認顏色是淺藍色,固然,你能夠依據我的愛好進行各類顏色設置。下面代碼引用了典型的Webkit和Mozilla供應商前綴::selection 。
字體


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::selection { background : #e2eae2 ; }
::-moz-selection { background : #e2eae2 ; }
::-webkit-selection { background : #e2eae2 ; }



10.隱藏Logo上的H1文本


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h 1 {
text-indent : -9999px ;
margin : 0 auto ;
width : 320px ;
height : 85px ;
background : transparent url ( "p_w_picpaths/logo.png" ) no-repeat scroll ;
}
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