Change multiple background-images with jQuery

问题:

In my css page, i have this as code:

header {
    background:url('afbeeldingen/r.png'),url('Afbeeldingen/black.jpg');
    background-position: 50% 33%, left top;
    background-repeat: no-repeat, no-repeat;
    background-size:26%,960px 130px;
    margin-left:auto;
    margin-right:auto;
}

Now in my html page, I want to use JQuery to change the first image when I hover my navigation bar. Can you please help me?

回答1:

Use class header to your navigation button wherever you want to do this work

.header {
    background:url('afbeeldingen/r.png'),url('Afbeeldingen/black.jpg');
    background-position: 50% 33%, left top;
    background-repeat: no-repeat, no-repeat;
    background-size:26%,960px 130px;
    margin-left:auto;
    margin-right:auto;
}


<script>
$(".header").hover(function(){
   $(this).css("background","url('Afbeeldingen/black.jpg'),url('Afbeeldingen/anotherhoverimage.jpg')"); 
});

$(".header").mouseout(function(){
   $(this).css("background","url('afbeeldingen/r.png'),url('Afbeeldingen/black.jpg')"); 
});
</script>

回答2:

There is no current native method in jQuery to switch out the order of the background images (and hence the one that is displayed). Here's the code to swap the background image order for an element with two background images by parsing the links and swapping them:

var bg=$(this).css('background-image').split('),url(');
if(bg.length==2) $(this).css('background-image','url('+bg[1]+','+bg[0]+')');