body,td,form,select,option,text,input,textarea{font:11pt/1.4 arial,san-serif;line-height:normal}body#ceip{background:none;color:#000;text-align:left;min-width:0;margin:0}*.hide{color:#000;line-height:100%;display:block;margin:0;font-size:1.5em;position:static;width:100%}a,a:link,a:visited,a:hover,a:active{color:#000;text-decoration:none}a.top{display:none}#zone1 span.contentImg{clear:none;display:inline;float:left;margin-right:0.2in;margin-bottom:0.2in}#zone1 span.contentImg.wide{width:60%}#zone1 span.contentImg.wide img{width:100%}#leftTsinghua,#header .navResource,#header .navSection,#header .mainNavFixedContainer,#header .site-title span,.fixedElements,.relativeElements,.altNav,div#zone2,div.containerComments,#zone1 .authorBox,#zoneDocFooter,#footer{display:none}div#quoteBox,.videoEmbed,.audioEmbed,#embed,#containerResources .containerCols,#containerShare,.pageLinks{display:none}#docEnd,#zoneTitle #containerTitle .photoCaption,#zoneTitle .containerNav,#zone1 dl.related{display:none}div#containerTitle{padding-left:0;width:99%;float:none}div#header{position:static}div#header{height:0.8in;width:100%;margin:0 0 0.25in 0;padding:0 0 0.25in 0;float:none;position:static}div#header h1{position:static;display:block;width:100%}div#header h1 img{display:block;float:right;clear:both;width:3in;margin:0;padding:0;border:none}div#containerTitle h2{color:#000;display:block;font-size:2em;line-height:normal;padding-bottom:0;width:80%}div#containerTitle div.metaD{color:#999;margin-bottom:0.5em}div#containerTitle div.metaD span{float:none;font-size:0.9em;text-transform:uppercase}div#containerTitle div.metaD span.doctype{display:block;float:none}div#containerTitle div.metaD span.author{display:block;font-size:1.4em;margin-bottom:0;padding-bottom:0.5in;text-transform:none}div#containerResources{color:#999;position:static;display:block;width:100%}div#containerResources div#containerSummary{color:#999;font-size:0.9em;line-height:1.2em}div#containerResources div#containerSummary strong{padding-right:0.15in;float:left;font-weight:normal;text-transform:uppercase}#zoneMain.show #zone1 div.containerComments ul.tools.column.last,#zoneMain.show #zone1 div.containerDoc.purchase,#zoneMain.show #zone1 div.containerComments div#postComment,#zoneMain.show #zone1 div.containerComments div.commentsFoot{display:none}#zoneMain.show #zone1 h3,#zoneMain.show #zone1 h4{font-family:Arial,Helvetica,sans-serif}#zoneMain .source{color:#999;font-size:0.9em}#zoneMain .source strong{color:#999;font-size:0.9em}#zoneMain.expert #zoneTitle{margin-top:0;padding-bottom:0.2in;paddding-top:0}#zoneMain.expert #zoneTitle,#zoneMain.expert #zone1{clear:both;width:100%;float:none;display:block;position:relative}#zoneMain.expert #summaryBlock .column.first{display:inline;float:left;margin-right:0.4in;padding-top:0}#zoneMain.expert #containerTitle .contentImg{margin:0;padding:0;padding-top:0.5in}#zoneMain.expert #containerTitle .contentImg img{margin:0;padding:0}#zoneMain.expert #summaryBlock{margin-bottom:0.5in;padding-bottom:0}#zoneMain.expert #summaryBlock .column.last{display:inline;float:left;width:48%;margin-top:-0.3in;margin-right:0.25in;padding-top:0;padding-right:0.25in}#zoneMain.expert #containerTitle #containerDetails{float:right;width:18%;font-size:0.9em;margin-top:-0.3in;padding-bottom:0}#zoneMain.expert #zone1{padding-top:0.25in}#zoneMain.expert #zoneTitle #containerResources,#zoneMain.expert #zone1 ul.tabs{display:none}body#ceip.arabic{text-align:right;font-family:"Arial Unicode MS","Simplified Arabic",arial,sans-serif;direction:rtl}body#ceip.arabic *{text-align:right;direction:rtl}body#ceip.arabic p,body#ceip.arabic div{text-align:right;direction:rtl}body#ceip.arabic .wrap{text-align:right;direction:rtl}