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HTML:

<!DOCTYPE html>
<html lang="en">
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>
	<link rel="stylesheet" type="text/css" href="./longpress.css" />
</head>
	<div class="container">
		<div class="label" id="label">é¿ææ</div>
		<div class="delete_btn">å é¤</div>
	<script src="./longpress.js"></script>
</body>
</html>
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JS

let timer = null
let startTime = ''
let endTime = ''
const label = document.querySelector('.label')
const deleteBtn = document.querySelector('.delete_btn')
label.addEventListener('touchstart', function () {
  startTime = +new Date()
  timer = setTimeout(function () {
    deleteBtn.style.display = 'block'
  }, 700)
label.addEventListener('touchend', function () {
  endTime = +new Date()
  clearTimeout(timer)
  if (endTime - startTime < 700) {
    // å¤çç¹å»äºä»¶
    label.classList.add('selected')
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CSS

.container {
	position: relative;
	display: inline-block;
	margin-top: 50px;
.label {
	display: inline-block;
	box-sizing: border-box;
	width: 105px;
	height: 32px;
	line-height: 32px;
	background-color: #F2F2F2;
	color: #5F5F5F;
	text-align: center;
	border-radius: 3px;
	font-size: 14px;
.label.selected {
	background-color: #4180cc;
	color: white;
.delete_btn {
	display: none;
	position: absolute;
	top: -8px;
	left: 50%;
	transform: translateX(-50%) translateY(-100%);
	color: white;
	padding: 10px 16px;
	background-color: rgba(0, 0, 0, .7);
	border-radius: 6px;
	line-height: 1;
	white-space: nowrap;
	font-size: 12px;
.delete_btn::after {
	content: '';
	width: 0;
	height: 0;
	border-width: 5px;
	border-style: solid;
	border-color: rgba(0, 0, 0, .7) transparent transparent transparent;
	position: absolute;
	bottom: -9px;
	left: 50%;
	transform: translateX(-50%);
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HTML:

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CSS

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