我在 google Chrome 和 Safari 上运行我的应用程序，两者都兼容 webkit。我正在使用 -webkit-transition 构建一个滚动的 div。
当我将文档类型指定为 HTML 4 transitional (!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN") 时，它工作得很好，但我们的要求是 HTML 5。当我设置doctype (!DOCTYPE HTML) 转换完全停止工作。
我通过 HTML5 验证器运行我的代码并清除了所有错误(标签除外)。
我是不是误会了什么？
相关代码如下:
<!DOCTYPE HTML>
<html>
<head>
<title>Shopping List</title>
<style>
ul{margin:0;padding:0;}
li{display: inline; float: left;}
body{
background-color: #475c76;
font-family: Arial;
font-size: 18pt;
font-weight: bold;
}
#wrapper{
height: 600px;
width: 800px;
}
/* Main menu */
#mainMenu{
height: 83px;
background-image: url(img/mainMenu_bg.png);
}
#mainMenu li{
height: 57px;
margin: 13px 0;
display: inline;
float: left;
color: #475c76;
}
#mainMenu li a{
color: #475c76;
padding: 0;
text-decoration: none;
background-image: url(img/btn_main.png);
background-position:0 0;
height: 57px;
width: 197px;
text-align: center;
line-height: 40pt;
display: inline-block;
}
#mainMenu li a:link{
}
#mainMenu li a:active{
background-position: 0 -57px;
color: white;
}
/* Page body */
#pagebody{
overflow: hidden;
height: 417px;
background-color: #DDDDDD;
}
/* Submenu */
.subMenuWrapper{
height: 80px;
width: 800px;
overflow: hidden;
position: absolute;
top: 421px;
left: 0;
}
#subMenus{
position: absolute;
background-image: url(img/subMenu_bg.png);
height: 80px;
width: 1600px;
-webkit-transition: all .4s;
}
#subMenus ul{
width: 780px;
padding: 0 10px;
display: inline;
float: left;
}
#subMenus ul .floatright{
float: right;
}
/* Buttons */
a.button{
color: white;
text-decoration: none;
background-position:center 0;
text-align: center;
display: inline-block;
}
a.button>*{
display: inline-block;
margin-top: 10px;
height: 60px;
background-image: url(img/button1.png);
line-height: 40pt;
}
a.button .l{
width: 14px;
background-position:top left;
}
a.button .t{
background-position:top center;
color: #AABBCC;
padding: 0 10px;
}
a.button .r{
width: 14px;
background-position: top right;
}
a.button .larrow{
width: 24px;
background-image: url(img/buttonpointies.png);
background-position:top left;
}
a.button .rarrow{
width: 24px;
background-image: url(img/buttonpointies.png);
background-position: top right;
}
a:active.button .t{
background-position: center -60px;
color: white;
}
a:active.button .l,
a:active.button .larrow{
background-position: left -60px;
}
a:active.button .r,
a:active.button .rarrow{
background-position: right -60px;
}
/* List */
#scrollingWrapper{
overflow: hidden;
}
#scrollingWrapper>div{
display:inline;
float:left;
}
#scrollingList{
position: relative;
width: 660px;
-webkit-transition: all .5s;
}
.lineItem{
height: 60px;
width: 100%;
border-top: 3px solid white;
border-bottom: 3px solid gray;
font-size: 24pt;
padding: 3px 8px;
background-color: #E8E8E8;
}
.lineItem *{
height: 57px;
display: inline;
float: left;
}
.lineItem .text{
margin: 7px 14px;
}
.lineItem .checkbox{
background-image: url(img/btn_check.png);
width: 44px;
margin:0;
}
/* Scroll buttons */
.scrollArea .scrollBar{
display: inline;
float: left;
background-color: #D0D0D0;
height: 334px;
width: 5px;
margin: 2px 0 2px 28px;
padding: 0;
border-radius: 3px;
}
.scrollArea .scrollBar #elevator{
position: relative;
background-color: gray;
height: 100px;
width: 5px;
-webkit-transition: all .5s;
border-radius: 3px;
}
.scrollArea .scrollButtons{
display:inline;
float:left;
margin-left: 12px;
margin-top: 100px;
}
.scrollArea .scrollButtons li{
display: block;
float: none;
padding: 4px 0;
}
.scrollArea .scrollButtons li div{
margin:0;
display: inline;
float: left;
}
.scrollArea .scrollButtons li div img{
padding-top: 10px;
}
/* Footer */
#footer{
position: absolute;
top: 500px;
height: 100px;
width: 800px;
border-top: 3px solid black;
}
#footer img{
margin: 5px;
float:left;
}
#footer #datetime{
margin-top: 20px;
}
#footer #datetime *{
float: right;
color: #AABBCC;
text-align: center;
color: #AABBCC;
display: block;
width: 160px;
}
</style>
<script>
var arrList = ["Milk 1%", "Bread", "Granny Smith Apples", "Oatmeal","Potatoes", "Yogurt", "Muffins", "Spaghetti", "Crackers", "Pancake Mix", "Melons", "Ice Cream", "Perogies", "Cottage Cheese", "Canned Peaches","Red Delicious Apples", "Ground Beef", "Salmon Steaks", "Popcorn", "Salt", "Tea", "Coffee", "Light Bulbs", "Eggs", "Bacon"];
var lineHeight = 72;
var windowHeight = 338;
var scrollBarHeight = 335;
var scrollAmt = lineHeight*4;
var listHeight; //tbd
var elevHeight; //tbd
function init(){
popList();
// upon finished loading
listHeight = (arrList.length)*lineHeight;
document.getElementById('scrollingList').style.top = 0;//needs to be explictly set so that it can be read later, otherwise it is undefined
elevHeight = windowHeight/listHeight*scrollBarHeight;
document.getElementById('elevator').style.height = elevHeight;
document.getElementById('elevator').style.top = 0;
}
function popList(){
// populate list from arrList
// THIS CODE IS RUN INLINE
var listHTML = "";
for (item=0;item<arrList.length;item++){
listHTML += '<div id="lineitem'+ item +'" class="lineItem" checked="false">';
listHTML += ' <a href="javascript:void(false);" id="check'+ item +'" class="checkbox" onmousedown="check(this, true)" onmouseup="check(this, false)"></a>';
listHTML += ' <div class="text">' + arrList[item] + '</div>';
listHTML += '</div>';
}
document.getElementById('scrollingList').innerHTML = listHTML;
}
function scrollme(dir){
var yMax = windowHeight-listHeight;
var yMin = 0;
if (dir>0){ // scroll down (list physically moves up, listPos goes more negative)
_setlistPos(Math.max(_getlistPos() - scrollAmt, yMax));
}
else{ // scroll up (list physically moves down, listPos goes more positive)
_setlistPos(Math.min(_getlistPos() + scrollAmt, yMin));
}
_setscrollPos();
function _getlistPos(){ return parseInt(document.getElementById('scrollingList').style.top); }
function _setlistPos(y){ document.getElementById('scrollingList').style.top = y; }
function _setscrollPos(){ document.getElementById('elevator').style.top = -(_getlistPos())*scrollBarHeight/listHeight; }
}
function editList(editState){
if (editState){ // show 2ndary menu
document.getElementById('subMenus').style.left = -800;
}
else{ // return to primary menu
document.getElementById('subMenus').style.left = 0;
}
}
function check(button,clickState){
var lineitem = button.parentNode;
if(clickState){ // button pressed
button.style.backgroundPosition = "0 -57px";
}
else{ // button released
if (lineitem.getAttribute("checked")=="false"){ // box was unchecked, so check it
lineitem.setAttribute("checked","true");
button.style.backgroundPosition = "0 -114px";
}
else{ // box was checked, so uncheck it
lineitem.setAttribute("checked","false");
button.style.backgroundPosition = "0 0";
}
}
}
function deleteChecked(){
var tempArrList = [];
for (item=0;item<arrList.length;item++){
var lineitem = document.getElementById("lineitem" + item);
if (lineitem.getAttribute("checked")!="true"){
tempArrList.push(lineitem.childNodes[3].innerText);
}
}
arrList = tempArrList;
init();
}
</script>
</head>
<body leftmargin="0" topmargin="0" marginheight="0" marginwidth="0" onload="init()">
<div id="wrapper">
<!-- Main Menu -->
<ul id="mainMenu">
<li><a href="">Home</a></li>
<li><a href="">Shopping List</a></li>
<li><a href="">Recipes</a></li>
<li><a href="">Specials</a></li>
</ul>
<!-- Page body -->
<div id="pagebody">
<div id="scrollingWrapper">
<!-- Scroll list -->
<div id="scrollingList">
</div>
<!-- Scroll Controls -->
<div class="scrollArea">
<div class="scrollBar"><div id="elevator"></div></div>
<ul class="scrollButtons">
<li>
<a class="button" href="javascript:void(false);" onmouseup="scrollme(-1);">
<div class="l"> </div><div class="t"><img src="img/glyph_up.png" width="35" height="35" alt=""></div><div class="r"> </div>
</a>
</li>
<li>
<a class="button" href="javascript:void(false);" onmouseup="scrollme(1);">
<div class="l"> </div><div class="t"><img src="img/glyph_dn.png" width="35" height="35" alt=""></div><div class="r"> </div>
</a>
</li>
</ul>
</div>
</div>
<!-- SubMenus -->
<div class="subMenuWrapper">
<div id="subMenus">
<ul id="subMenu1">
<li>
<a class="button" href="javascript:void(false);">
<div class="l"> </div><div class="t">Button 1</div><div class="r"> </div>
</a>
</li>
<li class="floatright">
<a class="button" href="javascript:void(false);" onmouseup="editList(true);">
<div class="l"> </div><div class="t">Edit List</div><div class="rarrow"> </div>
</a>
</li>
</ul>
<ul id="subMenu2" class="subMenu">
<li>
<a class="button" href="javascript:void(false);" onmouseup="editList(false);">
<div class="larrow"> </div><div class="t">Done</div><div class="r"> </div>
</a>
</li>
<li class="floatright">
<a class="button" href="javascript:void(false);" onmouseup="deleteChecked()">
<div class="l"> </div><div class="t">Clear Checked</div><div class="r"> </div>
</a>
</li>
</ul>
</div>
</div>
</div>
<!-- Footer -->
<div id="footer">
<img src="img/main_ad_wave.png" alt="">
<div id="datetime">
<span id="date">Fri. Jan. 01</span>
<span id="time">12:01am</span>
</div>
</div>
</div>
</body>
</html>
最佳答案
看起来问题不是过渡，而是属性的设置。
elevHeight = windowHeight/listHeight*scrollBarHeight;
document.getElementById('elevator').style.height = elevHeight;
CSS 高度属性采用的长度不是整数，并且长度(0 除外)需要单位。
(可能还有其他问题，可能是类似的问题，但这是我在您的代码中发现的第一个问题)
您正在使用的 Doctype(HTML 4.01 Transitional，没有 URL)被浏览器认为是在正确(或几乎正确)使用网络标准变得普遍(即大约 90 年代后期)之前编写的遗留代码的指示。这会触发 Quirks 模式。
HTML 5 Doctype 旨在触发标准模式，在该模式下浏览器更好地遵循标准(并且彼此之间更加一致 - 这是非常可取的)。
在 Quirks 模式中模拟的错误之一是将整数值视为像素长度。
您需要指定一个单位。例如... + 'px'.
(您在 HTML 中也有一些错误可以被 validator 检测到)
关于html - -webkit-transition 在 HTML4 transitional 中工作正常但在 HTML5 中不行？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/4738745/