2014 Alibaba web pre intern project analysis (1)

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Following simplification CSS Code ：

div.container{
	
	width:500px;
	background-image:url(/img/sprite.png);
	background-repeat:no-repeat;
	background-position:0px -78px;
}

div.container ul#news-list,div.container ul#news-list li{
	margin:0px;padding:0px;
}

div.container ul#news-list li{
	padding-left:20px;
	background-image:url(/img/sprite.png);
	background-position:-120px opx;
}

A{
	font-size:14px;
	font-weight:bold;
	line-height:150%;
	color:#000000;
}

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answer ：

div.container{		width:500px;	background-image:url(/img/sprite.png);	background-repeat:no-repeat;	background-position:0px -78px;}div.container ul#news-list,div.container ul#news-list li{	margin:0px;padding:0px;}div.container ul#news-list li{	padding-left:20px;	background-image:url(/img/sprite.png);	background-position:-120px opx;}A{	font-size:14px;	font-weight:bold;	line-height:150%;	color:#000000;}div.container{		width:500px;	background:url(/img/sprite.png) no-repeat 0 -78px;}#news-list,#news-list li{		margin:0 padding:0;}#news-list li{		padding-left:20px;background:url(/img/sprite.png)no-repeat -120px 0;}

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analysis ：CSS Brief introduction to usage

（1）CSS in font Abbreviation ：

font:italicsmall-capsbold12px/1.5emarial,verdana; Equivalent to ：

font-style:italic;font-variant:small-caps;font-weight:bold;font-size:12px;line-height:1.5em;font-family:arial,verdana;

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The order ：font-style|font-variant|font-weight|font-size|line-height|font-family

（2）CSS in background Abbreviation ：

background:#fffurl(bg.gif)no-repeatfixedlefttop; Equivalent to ：

background-color:#fff;background-image:url(bg.gif);background-repeat:no-repeat;background-attachment:fixed;background-position:lefttop;

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The order ：background-color|background-image|background-repeat|background-attachment|background-position

（3）CSS in margin&padding Abbreviation ：

border:1pxsolid#000; Equivalent to ：

border-width:1px;
border-style:solid;
border-color:#000;

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The order ：border-width|border-style|border-color

（4）CSS in list-style Abbreviation ：

list-style:squareoutsideurl(bullet.gif); Equivalent to ：

list-style-type:square;
list-style-position:outside;
list-style-image:url(bullet.gif)

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The order ：list-style-type|list-style-position|list-style-image

（5） The abbreviations of four sides are generally as follows ：

padding:1px2px3px4px; Equivalent to ：

padding-top:1px;
padding-right:2px;
padding-bottom:3px;
padding-left:4px;

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The order ：top|right|bottom|left Regardless of the border width . Or border color 、 Margin, etc , Just CSS The style involves four sides . The sequence is all “ On the lower left ”（ clockwise ）.

5.1） Suppose the values of four sides omit one . Just write three ：

padding:1px2px3px; Is equivalent to omitted “ The left value ” be equal to “ Right value ”：

padding-top:1px;
padding-right:2px;
padding-bottom:3px;
padding-left:2px;

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5.2） Suppose the values of four sides omit two ：

padding:1px2px; Equivalent to ： The left value omitted is equal to the right value . The upper value equals the lower value

padding-top:1px;
padding-right:2px;
padding-bottom:1px;
padding-left:2px;

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5.3） There is only one value

Padding:1px: Equivalent to ：

padding-top:1px;
padding-right:1px;
padding-bottom:1px;
padding-left:1px;

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