screen.width     //屏幕的寬
screen.height    //屏幕的高
screen.availWidth  //屏幕可用寬度  屏幕的像素高度減去系統(tǒng)部件高度之后的值
screen.availHeight  //屏幕可用高度  屏幕的像素寬度減去系統(tǒng)部件寬度之后的值

window.screenTop   //窗口頂部距屏幕頂部的距離
window.screenLeft  //窗口左側(cè)距屏幕左側(cè)的距離
window.innerWidth  //窗口中可視區(qū)域(viewpoint)的寬度
  alert(window.innerWidth); //chrome 1366 ff 1366 ie 1366
window.innerHeight  //窗口中可視區(qū)域(viewpoint)的高度 該值與瀏覽器是否顯示菜單欄等因素有關(guān)
  alert(window.innerHeight); //chrome 643 ff 657 ie 673
window.outerWidth  //瀏覽器窗口本身的寬度(可視區(qū)域?qū)挾?瀏覽器邊框?qū)挾?
  alert(window.outerWidth); //chrome 1366 ff 1382 ie 1382 
  //說明chrome在最大化時(shí)瀏覽器窗口沒有邊框?qū)挾?非最大化時(shí)有8px邊框
  //ff和ie上下左右有8px的邊框?qū)挾?
window.outerHeight  //瀏覽器窗口本身的高度
  alert(window.outerHeight); //chrome 728 ff 744 ie 744

boxWidth = 2*margin + 2*border + 2*padding + width
boxHeight = 2*margin + 2*border + 2*padding + height

body{margin:0;}
#demo{
  width:100px;
  height:100px;
  padding:10px;
  border:20px;
  margin:30px;
  background-color:red;
}
<div id="demo">123456789 123456789</div>

clientWidth = 2*padding + width - scrollbarWidth   
console.log(document.getElementById('demo').clientWidth); //120 此時(shí)scrollbarWidth=0
clientHeight = 2*padding + height - scrollbarHeight 
console.log(document.getElementById('demo').clientHeight); //120 此時(shí)scrollbarWidth=0

offsetWidth = 2*border + 2*padding + width 
console.log(document.getElementById('demo').offsetWidth)  //160
offsetHeight = 2*border + 2*padding + height 
console.log(document.getElementById('demo').offsetHeight)  //160

console.log(document.getElementById('demo').offsetLeft)  //30
console.log(document.getElementById('demo').offsetTop)  //30

body{
  margin:0;
  padding:20px;
  width:1000px;
  height:500px;
}
<div id="demo">123456789123456789</div>

scrollWidth = 2*padding + width  
console.log(document.body.scrollWidth)  //1040
scrollHeight = 2*padding + width  
console.log(document.body.scrollHeight)  //540