*::-webkit-scrollbar {
    width: 12px;
    height: 12px;
  }
  *::-webkit-scrollbar-button {
    width: 0px;
    height: 0px;
    display: none;
  }
  *::-webkit-scrollbar-corner {
    background-color: transparent;
  }
  *::-webkit-scrollbar-thumb {
    border: 4px solid rgba(0, 0, 0, 0);
    height: 6px;
    border-radius: 25px;
    background-clip: padding-box;
    background-color: rgba(0, 0, 0, 0.30);
  }

<div class="message" id="message"></div>

.message {
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
    margin: 0;
    padding: 0;
    color: rgba(0, 0, 0, 0.85);
    font-size: 14px;
    font-variant: tabular-nums;
    line-height: 1.5715;
    list-style: none;
    -webkit-font-feature-settings: 'tnum';
            font-feature-settings: 'tnum';
    position: fixed;
    top: 8px;
    left: 0;
    z-index: 9999999999;
    width: 100%;
    pointer-events: none;
}

.message-notice {
    padding: 8px;
    text-align: center;

    -webkit-animation-name: MessageMoveOut;
    animation-name: MessageMoveOut;
    -webkit-animation-duration: 0.3s;
    animation-duration: 0.3s;
}

.message-content {
    color: #52c41a;
    display: inline-block;
    padding: 10px 16px;
    background: #fff;
    border-radius: 2px;
    -webkit-box-shadow: 0 3px 6px -4px rgba(0, 0, 0, 0.12), 0 6px 16px 0 rgba(0, 0, 0, 0.08), 0 9px 28px 8px rgba(0, 0, 0, 0.05);
            box-shadow: 0 3px 6px -4px rgba(0, 0, 0, 0.12), 0 6px 16px 0 rgba(0, 0, 0, 0.08), 0 9px 28px 8px rgba(0, 0, 0, 0.05);
    pointer-events: all;
}

const msg = "我是弹框消息";
// 弹窗消息
function handleMessage(message = msg) {
    // console.log(message)
    const parentDiv = document.createElement("div");
    const div = document.createElement("div");
    div.className = "message-content";
    div.innerHTML = message;
    parentDiv.appendChild(div);
    parentDiv.className = "message-notice";
    document.getElementById("message").appendChild(parentDiv);

    setTimeout(() => {
        parentDiv.remove();
    }, 2000);
}


th:replace="templates/enterprise/fragment/header :: common_header(~{::title},~{},~{::meta})"
<head th:fragment="common_header(title,links,meta)">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">

    <th:block th:replace="${meta}" />
    <title th:replace="${title}"></title>

    <!-- CSS
	============================================ -->
    <!-- google fonts -->
    <link href="/enterprise/static/css/css.css" rel="stylesheet">
    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="/enterprise/static/css/bootstrap.min.css">
    <!-- Font-awesome CSS -->
    <link rel="stylesheet" href="/enterprise/static/css/font-awesome.min.css">
    <!-- Slick slider css -->
    <link rel="stylesheet" href="/enterprise/static/css/slick.min.css">
    <!-- Odometer css -->
    <link rel="stylesheet" href="/enterprise/static/css/odometer.min.css">
    <!-- animate css -->
    <link rel="stylesheet" href="/enterprise/static/css/animate.css">
    <!-- main style css -->
    <link rel="stylesheet" href="/enterprise/static/css/style.css?v=2.2">
    
  

    <!--/* Per-page placeholder for additional links */-->
    <th:block th:replace="${links}" />
</head>