CSS transitions animate the uploader between idle, uploading, success, and error states.
Visual feedback makes the upload experience feel polished and responsive.
.animated-uploader {
transition: border-color 0.4s, box-shadow 0.4s, background-color 0.4s;
}
.animated-uploader.cu-uploading {
border-color: #8b5cf6;
box-shadow: 0 0 0 4px rgba(139,92,246,0.15);
}
.animated-uploader.cu-success {
border-color: #10b981;
background-color: #ecfdf5;
}
AjaxUploader.create(el, {
uploadUrl: '/ajaxupload.axd/upload',
onTaskStart: function() { container.classList.add('cu-uploading'); },
onTaskComplete: function() { container.classList.add('cu-success'); }
});