JS CSS實現的經典圓角下拉式選單效果程式碼_javascript技巧-js教程-PHP中文網

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JS CSS實現的經典圓角下拉式選單效果程式碼_javascript技巧
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May 16, 2016 pm 03:35 PM
css js 下拉式選單圓角
本文實例講述了JS CSS實現的圓角下拉選單效果代碼。分享給大家參考，具體如下：
相信不少朋友會喜歡這款選單，CSS JS實現的圓角下拉選單，沒有使用任何修飾性的圖片哦，圓角完全是用JS完成的，因此代碼多了些，想使用的朋友把JS文件提取出來另存，這樣更合理。
運作效果截圖如下：
線上示範網址如下：
http://demo.jb51.net/js/2015/js-css-jd-cicle-style-button-demo/
具體程式碼如下：
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<title>QuickMenu 超强悍菜单</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<style type="text/css">
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  border-width:1px;
  border-style:solid;
  border-color:#eeeeee;
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  font-size:11px;
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  padding:3px 0px 3px 4px;
  color:#444444;
  font-family:arial;
  font-size:11px;
  font-weight:bold;
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 #qm0 .qmdividerx 
 { 
  border-top-width:1px;
  margin:4px 0px;
  border-color:#bfbfbf;
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 #qm0 .qmdividery 
 { 
  border-left-width:1px;
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  margin:4px 2px 0px;
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  border-width:1px;
  border-style:solid;
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l=0;l<cns.length;l++){if(cns[l].getAttribute("isibulletcss")||cns[l].getAttribute("isibullet"))cn.removeChild(cns[l]);}fi+='<span class="qmritemcontent" style="display:block;border-style:solid;border-width:0px 1px 0px 1px;'+q.opacity+'">'+cn.innerHTML+'</span>';for(var i=size-1;i>=0;i--)fi+=qm_ritem_get_span(size,i,null,ctype);f.innerHTML=fi;f=atags[k].insertBefore(f,atags[k].firstChild);atags[k].hasritem=f;}if(atags[k].cdiv)new qm_ritem_add_rounds(atags[k].cdiv);}};function qm_ritem_get_span(size,i,top,ctype){var q=qmad.ritem;var mlmr;if(i==0){var mo=q.ps[size]+q.mid;if(q.angle)mo=size-i;var fs="";if(qmad.str)fs="<br/>";mlmr=qm_ritem_get_corners(mo,null,top,ctype);return '<span style="border-width:1px 0px 0px 0px;border-style:solid;display:block;font-size:1px;overflow:hidden;line-height:0px;height:0px;margin-left:'+mlmr[0]+'px;margin-right:'+mlmr[1]+'px;'+q.opacity+'">'+fs+'</span>';}else {var md=size-(i);var ih=1;var bs=1;if(!q.angle){if(i>=q.mid)ih=Math.abs(q.mid-i)+1;else {bs=Math.abs(q.mid-i)+1;md=q.ps[size-i]+q.mid;}if(top)q.osize+=ih;}mlmr=qm_ritem_get_corners(md,bs,top,ctype);return '<span style="border-width:0px '+mlmr[3]+'px 0px '+mlmr[2]+'px;border-style:solid;display:block;overflow:hidden;font-size:1px;line-height:0px;height:'+ih+'px;margin-left:'+mlmr[0]+'px;margin-right:'+mlmr[1]+'px;'+q.opacity+'"></span>';}};function qm_ritem_get_corners(mval,bval,top,ctype){var q=qmad.ritem;var ml=mval;var mr=mval;var bl=bval;var br=bval;if(top){if(!q["corners_"+ctype][0]){ml=0;bl=1;}if(!q["corners_"+ctype][1]){mr=0;br=1;}}else {if(!q["corners_"+ctype][2]){mr=0;br=1;}if(!q["corners_"+ctype][3]){ml=0;bl=1;}}return new Array(ml,mr,bl,br);}/* ]]> */</script>
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