My application is performing poorly with jQuery's slideDown and slideUp. I'm looking to use a CSS3 equivalent in browsers which support it.
Is it possible, using CSS3 transitions, to change an element from display: none;
to display: block;
while sliding the item down or up?
You could do something like this:
#youritem .fade.in {
animation-name: fadeIn;
}
#youritem .fade.out {
animation-name: fadeOut;
}
@keyframes fadeIn {
0% {
opacity: 0;
transform: translateY(startYposition);
}
100% {
opacity: 1;
transform: translateY(endYposition);
}
}
@keyframes fadeOut {
0% {
opacity: 1;
transform: translateY(startYposition);
}
100% {
opacity: 0;
transform: translateY(endYposition);
}
}
Example - Slide and Fade:
This slides and animates the opacity - not based on height of the container, but on the top/coordinate. View example
Example - Auto-height/No Javascript: Here is a live sample, not needing height - dealing with automatic height and no javascript.
View example