CSS3 마우스 위로 버튼 띄우기 상자 보이기 효과


<html lang="zh-CN">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <style>
        * {
            margin: 0px;
            padding: 0px;
        }

        body {
            text-align: center;
        }

        p {
            margin: 100px;
        }

        .tip {
            display: inline-block;
            position: relative;
        }

        .tip:before, .tip:after {
            opacity: 0; /*        */
            position: absolute;
            z-index: 1000; /*     */
            /*           ，        .tip-*:hover:before, .tip-*:hover:after   ;
            0.3s:                ,ease:      ，    ，           */
            transition: 0.3s ease;
            -webkit-transition: 0.3s ease;
            -moz-transition: 0.3s ease;
        }

        .tip:before {
            content: '';
            border: 6px solid transparent;
        }

        .tip:after {
            content: attr(data-tip); /*        */
            padding: 5px;
            white-space: nowrap; /*     */
            background-color: #000000;
            color: #ffffff;
        }

        .tip:hover:before, .tip:hover:after {
            opacity: 1; /*             */
            z-index: 1000;
        }

        /*top*/
        .tip-top:before {
            bottom: 100%;
            left: 50%;
            border-top-color: rgba(0, 0, 0, 0.8); /*     */
            margin-left: -3px;
            margin-bottom: -12px;
        }

        .tip-top:after {
            bottom: 100%;
            left: 50%;
            margin-left: -6px;
        }

        .tip-top:hover:before {
            margin-bottom: -6px;
        }

        .tip-top:hover:after {
            margin-bottom: 6px;
        }

        /*bottom*/
        .tip-bottom:before {
            top: 100%;
            left: 50%;
            border-bottom-color: rgba(0, 0, 0, 0.8);
            margin-left: -3px;
            margin-top: -9px;
        }

        .tip-bottom:after {
            top: 100%;
            left: 50%;
            margin-left: -6px;
            margin-top: 3px;
        }

        .tip-bottom:hover:before {
            margin-top: -3px;
        }

        .tip-bottom:hover:after {
            margin-top: 9px;
        }

        /*right*/
        .tip-right:before {
            top: 50%;
            left: 100%;
            border-right-color: rgba(0, 0, 0, 0.8);
            margin-left: -9px;
            margin-top: -3px;
        }

        .tip-right:after {
            top: 50%;
            left: 100%;
            margin-left: 3px;
            margin-top: -6px;
        }

        .tip-right:hover:before {
            margin-left: -3px;
        }

        .tip-right:hover:after {
            margin-left: 9px;
        }

        /*left*/
        .tip-left:before {
            top: 50%;
            left: 0%;
            border-left-color: rgba(0, 0, 0, 0.8);
            margin-left: 0px;
            margin-top: -3px;
        }

        .tip-left:after {
            top: 50%;
            right: 100%;
            margin-right: 0px;
            margin-top: -6px;
        }

        .tip-left:hover:before {
            margin-left: -6px;
        }

        .tip-left:hover:after {
            margin-right: 6px;
        }
    style>
head>
<body>
<p>
    <button class="tip tip-top" data-tip="      ">    button>
p>
<p>
    <button class="tip tip-bottom" data-tip="      ">    button>
p>
<p>
    <button class="tip tip-right" data-tip="      ">    button>
p>
<p>
    <button class="tip tip-left" data-tip="      ">    button>
p>
body>
html>
CSS3 마우스 위로 버튼 띄우기 상자 보이기 효과

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