zoukankan      html  css  js  c++  java
  • 鼠标跟随提示效果

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
    <html xmlns="http://www.w3.org/1999/xhtml"> 
    <head> 
    <script language="javascript" src="a.js"></script> 
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
    <title>无标题文档</title> 
    <style type="text/css"> 
     *{font:normal 14px/150% '宋体'} 
     a:link, a:visited{color:#00f; text-decoration:none} 
     a:hover, a:active{color:#f00; text-decoration:underline} 
    </style> 
    </head> 
    <body> 
     <a href="http://www.hansir.cn" onmouseover="wsug(event, '【我的博客】http://www.hansir.cn<br />http://www.hansir.cn/blog')" onmouseout="wsug(event, 0)" target="_blank">http://www.hansir.cn</a><br /> 
     <a href="http://bbs.blueidea.com" onmouseover="wsug(event, '【经典论坛】http://bbs.blueidea.com')" onmouseout="wsug(event, 0)" target="_blank">http://bbs.blueidea.com</a><br /> 
     <a href="http://www.hansir.cn" onmouseover="wsug(event, '【我的博客】http://www.hansir.cn<br />http://www.hansir.cn/blog')" onmouseout="wsug(event, 0)" target="_blank">http://www.hansir.cn</a><br /> 
     <a href="http://bbs.blueidea.com" onmouseover="wsug(event, '【经典论坛】http://bbs.blueidea.com')" onmouseout="wsug(event, 0)" target="_blank">http://bbs.blueidea.com</a><br /> 
     <a href="http://www.hansir.cn" onmouseover="wsug(event, '【我的博客】http://www.hansir.cn<br />http://www.hansir.cn/blog')" onmouseout="wsug(event, 0)" target="_blank">http://www.hansir.cn</a><br /> 
     <a href="http://bbs.blueidea.com" onmouseover="wsug(event, '【经典论坛】http://bbs.blueidea.com')" onmouseout="wsug(event, 0)" target="_blank">http://bbs.blueidea.com</a><br /> 
    </body> 
    </html> 
    

      

    function wsug(e, str){ // http://www.hansir.cn 
     var oThis = arguments.callee; 
     if(!str) { 
      oThis.sug.style.visibility = 'hidden'; 
      document.onmousemove = null; 
      return; 
     }   
     if(!oThis.sug){ 
      var div = document.createElement('div'), css = 'top:0; left:0; position:absolute; z-index:100; visibility:hidden'; 
       div.style.cssText = css; 
       div.setAttribute('style',css); 
      var sug = document.createElement('div'), css= 'font:normal 12px/16px "宋体"; white-space:nowrap; color:#666; padding:3px; position:absolute; left:0; top:0; z-index:10; background:#f9fdfd; border:1px solid #0aa'; 
       sug.style.cssText = css; 
       sug.setAttribute('style',css); 
      var dr = document.createElement('div'), css = 'position:absolute; top:3px; left:3px; background:#333; filter:alpha(opacity=50); opacity:0.5; z-index:9'; 
       dr.style.cssText = css; 
       dr.setAttribute('style',css); 
      var ifr = document.createElement('iframe'), css='position:absolute; left:0; top:0; z-index:8; filter:alpha(opacity=0); opacity:0'; 
       ifr.style.cssText = css; 
       ifr.setAttribute('style',css); 
      div.appendChild(ifr); 
      div.appendChild(dr); 
      div.appendChild(sug); 
      div.sug = sug; 
      document.body.appendChild(div); 
      oThis.sug = div; 
      oThis.dr = dr; 
      oThis.ifr = ifr; 
      div = dr = ifr = sug = null; 
     } 
     var ee = e || window.event, obj = oThis.sug, dr = oThis.dr, ifr = oThis.ifr; 
     obj.sug.innerHTML = str; 
      
     var w = obj.sug.offsetWidth, h = obj.sug.offsetHeight, dw = document.documentElement.clientWidth||document.body.clientWidth; dh = document.documentElement.clientHeight || document.body.clientHeight; 
     var st = document.documentElement.scrollTop || document.body.scrollTop, sl = document.documentElement.scrollLeft || document.body.scrollLeft; 
     var left = e.clientX +sl +17 + w < dw + sl && e.clientX + sl + 15 || e.clientX +sl-8 - w, top = e.clientY + st + 17; 
     obj.style.left = left+ 10 + 'px'; 
     obj.style.top = top + 10 + 'px'; 
     dr.style.width = w + 'px'; 
     dr.style.height = h + 'px'; 
     ifr.style.width = w + 3 + 'px'; 
     ifr.style.height = h + 3 + 'px'; 
     obj.style.visibility = 'visible'; 
     document.onmousemove = function(e){ 
      var ee = e || window.event, st = document.documentElement.scrollTop || document.body.scrollTop, sl = document.documentElement.scrollLeft || document.body.scrollLeft; 
      var left = e.clientX +sl +17 + w < dw + sl && e.clientX + sl + 15 || e.clientX +sl-8 - w, top = e.clientY + st +17 + h < dh + st && e.clientY + st + 17 || e.clientY + st - 5 - h; 
      obj.style.left = left + 'px'; 
      obj.style.top = top + 'px'; 
     } 
    } 
    

      

     

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  • 原文地址:https://www.cnblogs.com/umgsai/p/3908183.html
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