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Home Web Front-end HTML Tutorial How can I freeze the picture that pops up with the following code? _html/css_WEB-ITnose

How can I freeze the picture that pops up with the following code? _html/css_WEB-ITnose

Jun 24, 2016 pm 12:12 PM

// 右下角弹出图片
document.writeln("")
document.writeln("

 ");
document.writeln(""); 
document.writeln("
");
var bodyfrm = ( document.compatMode.toLowerCase()=="css1compat" ) ? document.documentElement : document.body;
var adst = document.getElementById("qqaddiv").style;
adst.top = ( bodyfrm.clientHeight - 172) "px";
adst.left = ( bodyfrm.clientWidth - 252) "px";
function moveR() {
adst.top = ( bodyfrm.scrollTop bodyfrm.clientHeight - 172 ) "px";
adst.left = ( bodyfrm.scrollLeft bodyfrm.clientWidth - 252 ) "px";
}
setInterval("moveR(); ", 80);


How to make the picture that pops up in the lower right corner stay fixed, which means that no matter how the drop-down box is pulled, the picture will not move!


回复讨论(解决方案)

你可以参考





html,body{margin:0;padding:0;}
#y1 {position:fixed;top:0;left:0;width:100px;height:100px;border:1px solid red;}
#y2 {position:fixed;top:0;right:0;width:100px;height:100px;border:1px solid red;}
#y3 {position:fixed;bottom:0;left:0;width:100px;height:100px;border:1px solid red;}
#y4 {position:fixed;bottom:0;right:0;width:100px;height:100px;border:1px solid red;}




  //以下所有脚本只为IE6写,其他浏览器完全可以删除。
  function getViewportScrollX() {
    var scrollX = 0;
    if (document.documentElement && document.documentElement.scrollLeft) {
      scrollX = document.documentElement.scrollLeft;
    }
    else if (document.body && document.body.scrollLeft) {
      scrollX = document.body.scrollLeft;
    }
    else if (window.pageXOffset) {
      scrollX = window.pageXOffset;
    }
    else if (window.scrollX) {
      scrollX = window.scrollX;
    }
    return scrollX;
  }

  function getViewportScrollY() {
    var scrollY = 0;
    if (document.documentElement && document.documentElement.scrollTop) {
      scrollY = document.documentElement.scrollTop;
    }
    else if (document.body && document.body.scrollTop) {
      scrollY = document.body.scrollTop;
    }
    else if (window.pageYOffset) {
      scrollY = window.pageYOffset;
    }
    else if (window.scrollY) {
      scrollY = window.scrollY;
    }
    return scrollY;
  }

  function getViewportWidth() {
    var width = 0;
    if (document.documentElement && document.documentElement.clientWidth) {
      width = document.documentElement.clientWidth;
    }
    else if (document.body && document.body.clientWidth) {
      width = document.body.clientWidth;
    }
    else if (window.innerWidth) {
      width = window.innerWidth - 18;
    }
    return width;
  }

  function getViewportHeight() {
    var height = 0;
    if (window.innerHeight) {
      height = window.innerHeight - 18;
    }
    else if (document.documentElement && document.documentElement.clientHeight) {
      height = document.documentElement.clientHeight;
    }
    else if (document.body && document.body.clientHeight) {
      height = document.body.clientHeight;
    }
    return height;
  }

  if (navigator.userAgent.indexOf("MSIE 6") > -1 && navigator.userAgent.indexOf("MSIE 7") == -1 && navigator.userAgent.indexOf("MSIE 8") == -1) {
    window.ononload = window.onscroll = window.onresize = function (e) {
      var t = getViewportScrollY();
      var l = getViewportScrollX();
      var w = getViewportWidth();
      var h = getViewportHeight();
      document.getElementById("y1").style.left = l + "px";
      document.getElementById("y1").style.top = t + "px";

      document.getElementById("y2").style.left = l + w - document.getElementById("y2").offsetWidth + "px";
      document.getElementById("y2").style.top = t + "px";

      document.getElementById("y3").style.left = l + "px";
      document.getElementById("y3").style.top = t + h - document.getElementById("y2").offsetHeight + "px";

      document.getElementById("y4").style.left = l + w - document.getElementById("y2").offsetWidth + "px";
      document.getElementById("y4").style.top = t + h - document.getElementById("y2").offsetHeight + "px";
    }
  }



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