Javascript 脚本可以在JSFIDLE中工作,但不能在HTML文档中工作
我在JSFIDLE中有一个脚本可以工作: 但是,在HTML文档中,它不起作用:Javascript 脚本可以在JSFIDLE中工作,但不能在HTML文档中工作,javascript,jquery,html,css,Javascript,Jquery,Html,Css,我在JSFIDLE中有一个脚本可以工作: 但是,在HTML文档中,它不起作用: <!DOCTYPE html> <html lang="en"> <head> <script type="text/javascript"> function calcSpeed(speed) { // Time = Distance/Speed var spanSelector = docum
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript">
function calcSpeed(speed) {
// Time = Distance/Speed
var spanSelector = document.querySelectorAll('.marquee span'),
i;
for (i = 0; i < spanSelector.length; i++) {
var spanLength = spanSelector[i].offsetWidth,
timeTaken = spanLength / speed;
spanSelector[i].style.animationDuration = timeTaken + "s";
}
}
calcSpeed(75);
</script>
<style>
/* Make it a marquee */
.marquee {
width: 100%;
left: 0px;
height: 10%;
position: fixed;
margin: 0 auto;
white-space: nowrap;
overflow: hidden;
background-color: #000000;
bottom: 0px;
color: white;
font: 50px'Verdana';
}
.marquee span {
display: inline-block;
padding-left: 100%;
text-indent: 0;
animation: marquee linear infinite;
animation-delay: 5s;
background-color: #000000;
color: white;
bottom: 0px;
}
/* Make it move */
@keyframes marquee {
0% {
transform: translate(10%, 0);
}
100% {
transform: translate(-100%, 0);
}
}
/* Make it pretty */
.scroll {
padding-left: 1.5em;
position: fixed;
font: 50px'Verdana';
bottom: 0px;
color: white;
left: 0px;
height: 10%;
}
</style>
</head>
<body>
<div class="marquee">
<span>Lots of text, written in a long sentance to make it go off the screen. Well I hope it goes off the screen</span>
</div>
</body>
</html>
功能calcSpeed(速度){
//时间=距离/速度
var spanSelector=document.querySelectorAll('.marquee span'),
我
对于(i=0;i
该脚本是一个css和javascript字幕,用于控制滚动文本的稳定速度
知道我错过了什么吗
此外,正如您在小提琴上看到的,文本开始滚动需要一段时间。我可以减少延迟吗?您正在尝试选择一个尚未创建的元素 将脚本移动到字幕下方
<div class="marquee">
<span>Lots of text, written in a long sentance to make it go off the screen. Well I hope it goes off the screen</span>
</div>
<script type="text/javascript">
function calcSpeed(speed) {
// Time = Distance/Speed
var spanSelector = document.querySelectorAll('.marquee span'),
i;
for (i = 0; i < spanSelector.length; i++) {
var spanLength = spanSelector[i].offsetWidth,
timeTaken = spanLength / speed;
spanSelector[i].style.animationDuration = timeTaken + "s";
}
}
calcSpeed(75);
</script>
大量的文字,写在一个长句,使它离开屏幕。我希望它能从屏幕上消失
功能calcSpeed(速度){
//时间=距离/速度
var spanSelector=document.querySelectorAll('.marquee span'),
我
对于(i=0;i
您正在尝试选择尚未创建的元素
将脚本移动到字幕下方
<div class="marquee">
<span>Lots of text, written in a long sentance to make it go off the screen. Well I hope it goes off the screen</span>
</div>
<script type="text/javascript">
function calcSpeed(speed) {
// Time = Distance/Speed
var spanSelector = document.querySelectorAll('.marquee span'),
i;
for (i = 0; i < spanSelector.length; i++) {
var spanLength = spanSelector[i].offsetWidth,
timeTaken = spanLength / speed;
spanSelector[i].style.animationDuration = timeTaken + "s";
}
}
calcSpeed(75);
</script>
大量的文字,写在一个长句,使它离开屏幕。我希望它能从屏幕上消失
功能calcSpeed(速度){
//时间=距离/速度
var spanSelector=document.querySelectorAll('.marquee span'),
我
对于(i=0;i
在所有DOM就绪后调用JS函数,通常通过使用窗口来完成。onload
如下所示:
window.onload = function() {
calcSpeed(75);
}
在所有DOM就绪后调用JS函数,通常通过使用
window.onload
完成,如下所示:
window.onload = function() {
calcSpeed(75);
}
在结束正文之前,请输入脚本和样式代码
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<div class="marquee">
<span>Lots of text, written in a long sentance to make it go off the screen. Well I hope it goes off the screen</span>
</div>
<script>
function calcSpeed(speed) {
// Time = Distance/Speed
var spanSelector = document.querySelectorAll('.marquee span'),
i;
for (i = 0; i < spanSelector.length; i++) {
var spanLength = spanSelector[i].offsetWidth,
timeTaken = spanLength / speed;
spanSelector[i].style.animationDuration = timeTaken + "s";
}
}
calcSpeed(75);
</script>
<style>
/* Make it a marquee */
.marquee {
width: 100%;
left: 0px;
height: 10%;
position: fixed;
margin: 0 auto;
white-space: nowrap;
overflow: hidden;
background-color: #000000;
bottom: 0px;
color: white;
font: 50px'Verdana';
}
.marquee span {
display: inline-block;
padding-left: 100%;
text-indent: 0;
animation: marquee linear infinite;
animation-delay: 5s;
background-color: #000000;
color: white;
bottom: 0px;
}
/* Make it move */
@keyframes marquee {
0% {
transform: translate(10%, 0);
}
100% {
transform: translate(-100%, 0);
}
}
/* Make it pretty */
.scroll {
padding-left: 1.5em;
position: fixed;
font: 50px'Verdana';
bottom: 0px;
color: white;
left: 0px;
height: 10%;
}</style>
</body>
</html>
大量的文字,写在一个长句,使它离开屏幕。我希望它能从屏幕上消失
功能calcSpeed(速度){
//时间=距离/速度
var spanSelector=document.querySelectorAll('.marquee span'),
我
对于(i=0;i
这在我身上起作用请在结束正文之前输入脚本和样式代码
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<div class="marquee">
<span>Lots of text, written in a long sentance to make it go off the screen. Well I hope it goes off the screen</span>
</div>
<script>
function calcSpeed(speed) {
// Time = Distance/Speed
var spanSelector = document.querySelectorAll('.marquee span'),
i;
for (i = 0; i < spanSelector.length; i++) {
var spanLength = spanSelector[i].offsetWidth,
timeTaken = spanLength / speed;
spanSelector[i].style.animationDuration = timeTaken + "s";
}
}
calcSpeed(75);
</script>
<style>
/* Make it a marquee */
.marquee {
width: 100%;
left: 0px;
height: 10%;
position: fixed;
margin: 0 auto;
white-space: nowrap;
overflow: hidden;
background-color: #000000;
bottom: 0px;
color: white;
font: 50px'Verdana';
}
.marquee span {
display: inline-block;
padding-left: 100%;
text-indent: 0;
animation: marquee linear infinite;
animation-delay: 5s;
background-color: #000000;
color: white;
bottom: 0px;
}
/* Make it move */
@keyframes marquee {
0% {
transform: translate(10%, 0);
}
100% {
transform: translate(-100%, 0);
}
}
/* Make it pretty */
.scroll {
padding-left: 1.5em;
position: fixed;
font: 50px'Verdana';
bottom: 0px;
color: white;
left: 0px;
height: 10%;
}</style>
</body>
</html>
大量的文字,写在一个长句,使它离开屏幕。我希望它能从屏幕上消失
功能calcSpeed(速度){
//时间=距离/速度
var spanSelector=document.querySelectorAll('.marquee span'),
我
对于(i=0;i
这对我很有效你应该写所有的