JSFiddle - React, Tailwind, and code Playground

by od0201

HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="styles.css" />
    <title>Drag & Drop | Проект 2</title>
  </head>
  <body>
    <div>
      <div class="row">
          <div class="col-header start">Начать</div>
          <div class="col-header progress">В процессе</div>
          <div class="col-header done">Готовы</div>
      </div>

      <div class="row">
        <div class="placeholder">
          <div class="item" draggable="true">Перетащи меня</div>
        </div>
        <div class="placeholder"></div>
        <div class="placeholder"></div>
      </div>
      
    </div>
    <script src="app.js"></script>
  </body>
</html>

CSS

@import url('https://fonts.googleapis.com/css?family=Roboto&display=swap');

* {
  box-sizing: border-box;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: #e5e5e5;
  display: flex;
  padding-top: 5rem;
  justify-content: center;
  overflow: hidden;
  margin: 0;
}

.row {
  display: flex;
  width: 600px;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.col-header {
  width: 150px;
  box-shadow: 4px 4px 9px rgba(198, 198, 198, 0.36);
  border-radius: 20px;
  padding: 0.8rem 1rem;
  color: #fff;
}

.item {
  width: 150px;
  height: 66px;
  border: 1px solid #eee;
  box-shadow: 4px 4px 9px rgba(198, 198, 198, 0.36);
  border-radius: 20px;
  background: #f7f6f7;
  padding: 0.8rem 1rem;
  color: #828282;
  text-align: center;
  cursor: grab;
}

.item:active {
  cursor: grabbing;
}

.placeholder {
  width: 150px;
  height: 66px;
}

.err {
  width: 100%;  
  border-radius: 20px;
  padding: 0.8rem 1rem;
  margin: 2rem 0;
  color: #fff;
  background: #f55;
  text-align: center;
  font-size: small;
  word-wrap: break-wordж
}
.start {
  background: linear-gradient(90deg, #ff85e4 0%, #229efd 179.25%);
}

.progress {
  background: linear-gradient(90deg, #209cff 0%, #68e0cf 100%);
}

.done {
  background: linear-gradient(90deg, #84fab0 0%, #8fd3f4 100%);
}
.hold{
  /* border: 5px solid rgb(208, 231, 163); */
  background:#ffbdbd;
}
.hide{
  /* display: none; */
  opacity: .3;
}
.hovered{
  border-radius: 20px;
  border: 2px solid #8ED7ED; 
}

JavaScript

const item=document.querySelector(".item")
const placeholders=document.querySelectorAll('.placeholder')

item.addEventListener('dragstart',dragstart)
item.addEventListener('dragend',dragend)
placeholders.forEach((placeholder)=>{
  placeholder.addEventListener('dragover',dragover)
  placeholder.addEventListener('dragenter',dragenter)
  placeholder.addEventListener('dragleave',dragleave)
  placeholder.addEventListener('drop',dragdrop)
})

function dragstart (event){
  event.target.classList.add('hold')
  setTimeout(()=>event.target.classList.add('hide'),0)
}

function dragend (event){
  event.target.classList.remove('hold')
  event.target.classList.remove('hide')
}

function dragover (event){
  event.preventDefault()
}

function dragenter (event){
  event.target.classList.add('hovered')
}

function dragleave (event){
  event.target.classList.remove('hovered')
}

function dragdrop (event){
  event.target.classList.remove('hovered')
  if(!this.querySelector(".item")){
    event.target.append(item)
  }
   event.target.append(item)
}