问题
I need to create two marquees (one with a repeating image and one with repeating links) that span the browser window at any size; the marquee items need to be displayed from the start and not take a few seconds to appear on screen and each of them need to be about 20px/30px apart. When a user hovers over it, the marquee needs to stop moving across the page.
I'm creating a website for a client and on one page we've decided on having a marquee to display the logo and on another, a marquee to display links to the client's social media. I'm unsure of how to calculate the necessary duration of the animation, based off the size of the text or image to make it appear infinite. I've looked into and tried out CSS options and I've asked around only to find that Javascript is usually recommended for this. I've just begun diving into Javascript, so I'm pretty clueless with where to start on this project. This is actually pretty similar to what I need: https://stackoverflow.com/a/45103608/11623961. This is an example of what I'm trying to achieve: http://maxsiedentopf.com/work-2 (only the one at the bottom, but with no overlap from the left side; simply moving from left to right). This is what I was trying to use to achieve the desired effect: https://codepen.io/jamesbarnett/pen/kfmKa.
body {
margin: 0;
font-family: "UniversLTPro-Ex";
font-size: 30px;
}
a {
text-decoration: none;
color: #000;
}
.marquee {
height: 35px;
width: 100%;
overflow: hidden;
position: relative;
background-color: #e9e5fb;
border-top: 1px solid black;
border-bottom: 1px solid black;
padding: 8px 0 4px 0;
}
.marquee div {
display: inline-block;
width: 300%;
height: 40px;
position: absolute;
overflow: hidden;
animation: marquee 12s linear infinite;
}
.marquee span {
float: left;
width: 25%;
}
@keyframes marquee {
0% { left: 0; }
100% { left: -150%; }
} <div class="marquee">
<div>
<span><a href="#">twitter</a></span>
<span><a href="#">instagram</a></span>
<span><a href="#">pinterest</a></span>
<span><a href="#">spotify</a></span>
<span><a href="#">magazine</a></span>
</div>
</div>Obviously, there are a lot of problems with what I tried to do. The marquee does not appear infinite, I have not figured out how to pause on hover, the items are too far apart. Any help would be greatly appreciated. Thank you!
回答1:
Here are a few ways you can achieve the result, you can choose the one u like the best.
- HTML marquee tag
- CSS animation and text-indent
- CSS animation and position relative
- JS vanilla (no libs)
- JS Jquery animate
/* Vanilla JS */
var rightJS = {
init: function(){
rightJS.Tags = document.querySelectorAll('.rightJS');
for(var i = 0; i < rightJS.Tags.length; i++){
rightJS.Tags[i].style.overflow = 'hidden';
}
rightJS.Tags = document.querySelectorAll('.rightJS div');
for(var i = 0; i < rightJS.Tags.length; i++){
rightJS.Tags[i].style.position = 'relative';
rightJS.Tags[i].style.right = '-'+rightJS.Tags[i].parentElement.offsetWidth+'px';
}
rightJS.loop();
},
loop: function(){
for(var i = 0; i < rightJS.Tags.length; i++){
var x = parseFloat(rightJS.Tags[i].style.right);
x ++;
var W = rightJS.Tags[i].parentElement.offsetWidth;
var w = rightJS.Tags[i].offsetWidth;
if((x/100) * W > w) x = -W;
if (rightJS.Tags[i].parentElement.parentElement.querySelector(':hover') !== rightJS.Tags[i].parentElement) rightJS.Tags[i].style.right = x + 'px';
}
requestAnimationFrame(this.loop.bind(this));
}
};
window.addEventListener('load',rightJS.init);
/* JQUERY */
$(function(){
var rightJQ = {
init: function(){
$('.rightJQ').css({
overflow: 'hidden'
});
$('.rightJQ').on('mouseover',function(){
$('div', this).stop();
});
$('.rightJQ').on('mouseout',function(){
$('div', this).animate({
right: '100%'
}, 14000, 'linear' );
});
rightJQ.loop();
},
loop: function(){
$('.rightJQ div').css({
position: 'relative',
right: '-100%'
}).animate({
right: '100%'
}, 14000, 'linear', rightJQ.loop);
}
};
rightJQ.init();
});marquee { background: #0089fa; }
.rightTI { background: #ff002b;
white-space: nowrap;
overflow: hidden;
animation: marquee 18s linear infinite;
}
.rightTI:hover {
animation-play-state: paused;
}
@-webkit-keyframes marquee {
0% {text-indent: 100%;}
100% {text-indent: -100%;}
}
.rightCSS {
background: #a35dc1;
overflow: hidden;
}
.rightCSS div {
position: relative;
animation: CSSright linear 18s infinite;
}
@keyframes CSSright {
0% { right: -100% }
100% { right: 100% }
}
.rightCSS:hover div {
animation-play-state: paused;
}
.rightJS { background: #ffa900; }
.rightJQ { background: #00a753; }
.li {
float: left;
width: 80%;
padding: 1%;
margin: 1% 10%;
height: 20px;
border-radius: 0.5em;
box-shadow: 0 0.1em 0.5em;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<marquee class="li" direction=”right” onmouseover="stop()" onmouseout="start()">★ HTML tag <marquee> ★</marquee>
<div class="rightTI li">★ CSS animation and text-indent ★</div>
<div class="rightCSS li"><div>★ CSS animation and position relative ★</div></div>
<div class="rightJS li"><div>★ pure javascript ★</div></div>
<div class="rightJQ li"><div>★ Jquery animate ★</div></div>回答2:
Using CSS is always the best option, but for your requirement, it needs to pause on hover and resume from the last stopped position, which is not possible using CSS. So make use of Javascript for moving so. Set a timeInterval which changes left property of the element to move the element to left in intervals and onhover clear the timeinterval such that the animation will stop at the last left value. onmouseout again start the interval which will continue the animation.
回答3:
lucygoosey ur problem is solve and if you want more than u should give more effort on that
body {
margin: 0;
font-family: "UniversLTPro-Ex";
font-size: 30px;
}
a {
text-decoration: none;
color: #000;
}
.marquee {
height: 35px;
width: 300%;
position: relative;
padding: 8px 0 4px 0;
border: none;
}
.marq{
background-color: #e9e5fb;
border-top: 1px solid black;
border-bottom: 1px solid black;
}
.marquee span {
float: left;
width: 300px;
}
@keyframes marquee {
0% { left: 0; }
100% { left: -150%; }
}<div class="marq">
<marquee onmouseover="this.stop();" onmouseout="this.start();">
<div class="marquee">
<span><a href="#">twitter</a></span>
<span><a href="#">instagram</a></span>
<span><a href="#">pinterest</a></span>
<span><a href="#">spotify</a></span>
<span><a href="#">magazine</a></span>
</div>
</marquee>
</div>Read more about marquee tag
Marquee tag documentation - here
回答4:
I think CSS will be the best option to go with..For the pause and continue JavaScript shold do the job..
回答5:
If anyone is looking for an answer to the same problem that uses purely CSS and appears to infinitely display text on screen, you can check it out here!
来源：https://stackoverflow.com/questions/56522476/how-to-create-a-marquee-using-css-or-javascript