drag-n-drop
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<style>
* {
box-sizing: border-box;
}
body {
background-color: steelblue;
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
overflow: hidden;
margin: 0;
}
.empty {
height: 150px;
width: 150px;
margin: 10px;
border: solid 3px black;
background: white;
}
.fill {
background-image: url('https://source.unsplash.com/random/150x150');
height: 145px;
width: 145px;
cursor: pointer;
}
.hold {
border: solid 5px #ccc;
}
.hovered {
background-color: #333;
border-color: white;
border-style: dashed;
}
@media (max-width: 800px) {
body {
flex-direction: column;
}
}
</style>
<title>Drag N Drop</title>
</head>
<body>
<div class="empty">
<div class="fill" draggable="true"></div>
</div>
<div class="empty"></div>
<div class="empty"></div>
<div class="empty"></div>
<div class="empty"></div>
<script>const fill = document.querySelector('.fill')
const empties = document.querySelectorAll('.empty')
fill.addEventListener('dragstart', dragStart)
fill.addEventListener('dragend', dragEnd)
for(const empty of empties) {
empty.addEventListener('dragover', dragOver)
empty.addEventListener('dragenter', dragEnter)
empty.addEventListener('dragleave', dragLeave)
empty.addEventListener('drop', dragDrop)
}
function dragStart() {
this.className += ' hold'
setTimeout(() => this.className = 'invisible', 0)
}
function dragEnd() {
this.className = 'fill'
}
function dragOver(e) {
e.preventDefault()
}
function dragEnter(e) {
e.preventDefault()
this.className += ' hovered'
}
function dragLeave() {
this.className = 'empty'
}
function dragDrop() {
this.className = 'empty'
this.append(fill)
}</script>
</body>
</html>