After successfully creating an image slideshow with a crossfade effect that automatically cycles every second, I noticed a peculiar behavior. Each time the image fades in while the old one fades out, its top position increases until eventually resetting at the first image.
To illustrate this issue, consider the following steps:
1. Margin-top: -575px
2. Margin-top: -600px (my assumption)
3. Margin-top: -625px (another assumption)
You can see how the image positions progressively rise and then reset back to the initial state.
Below is the jQuery code responsible for handling the slideshow functionality:
$(function() {
var slides = [$("#image1"), $("#image2"), $("#image3"), $("#image4"), $("#image5")];
var slidePos = 0;
setInterval(function() {
if (slidePos < slides.length-1) {
slides[slidePos].animate({
opacity: "0"
}, 1000);
slides[slidePos+1].animate({
opacity: "1"
}, 1000, function() {
slidePos++;
});
} else {
marginCalc = 575;
slides[slidePos].animate({
opacity: "0"
}, 1000);
slidePos = 0;
slides[slidePos].animate({
opacity: "1"
}, 1000);
}
}, 3000);
});
Additionally, here is the relevant CSS used in styling the slideshow components:
.slideshow-container {
width: 100%;
background-color: yellow;
height: 100%;
text-align: center;
}
img {
width: 70%;
max-width: 800px;
margin: 0 auto 0 auto;
}
.transparent-image {
position: relative;
opacity: 0;
display: block;
margin-top: -50.5%;
}
#image1 {
opacity: 1;
margin-top: 0;
}