popup.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>one-clipboard</title>
    <style>
        .wrap {
            width: 300px;
            min-height: 300px;
            max-height: 400px;
            padding: 10px;
            padding-top: 0px;
            overflow-y: scroll;
        }
        .list {
            display: flex;
            justify-content: flex-start;
            flex-direction: column;
        }
        .item {
            height: 40px;
            line-height: 40px;
            width: 100%;
            border-bottom: 1px solid #e8e8e8;
            text-overflow: ellipsis;
            white-space: nowrap; 
            overflow: hidden;
        }
        .item:hover {
            background: #e8e8e8;
        }
        .header {
            text-align: center;
            color: #1890ff;
            /* color: "#1890ff"; */
            font-size: 16px;
            margin-bottom: 10px;
        }
    </style>
</head>
<body>
    <div class="wrap" id="wrap" >
        <div class="header" id="header">点击复制到粘贴板</div>
        <div class="list" id="list"> </div>
    </div>
</body>
<script src="js/jquery-3.3.1.min.js"></script>
<script src="js/clipboard.js"></script>
<script src="js/popup.js"></script>
</html>