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博客园美化鼠标滚轮下滑出现小标题方便查找

2019年10月07日  | 移动技术网IT编程  | 我要评论

一.自己给自己定的需求

  • 鼠标滑轮移动合适位置出现小标题
  • 鼠标下滑时候出现,鼠标上滑时候消失
  • 淡出的效果

二.代码

<!--小标题-->
<style>
    .my_catalogue_div {

        line-height: 50px;
        position: fixed;
        height: 50px;
        width: 100%;
        background: url(https://images.cnblogs.com/cnblogs_com/pythonywy/1456775/o_44.png);
        background-size: 100% 100%;
        top: 0;
        z-index: 999999;
  
    }

    .my_catalogue {
        margin-right: 10px;
        float: left;
        display: block;
        position: initial;
    }

    .my_catalogue a:link, .my_catalogue a:visited, .my_catalogue a {
        display: inline-block;
        vertical-align: middle;
        font-size: 15px;
        padding: 0 10px;
        -webkit-transform: perspective(1px) translatez(0);
        transform: perspective(1px) translatez(0);
        box-shadow: 0 0 1px rgba(0, 0, 0, 0);
        position: relative;
        -webkit-transition-property: color;
        transition-property: color;
        -webkit-transition-duration: 0.5s;
        transition-duration: 0.5s;
        color: black;
        text-decoration: none;
    }

    .my_catalogue a:before {

        content: "";
        position: absolute;
        z-index: -1;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: #222;
        transform: scaley(0);
        transform-origin: 50% 0;
        transition-property: transform;
        transition-duration: 0.5s;
        transition-timing-function: ease-out;
    }

    .my_catalogue a:hover {
        color: white;
        box-shadow: none;
        padding: 0 10px;
    }

    .my_catalogue a:hover::before {
        transform: scaley(1);
        transition-timing-function: cubic-bezier(0.52, 1.64, 0.37, 0.66);

    }

    @keyframes opacity_0_to_1 {
        0% {
            opacity: 0;
        }
        100% {
            opacity: 0.9;
        }

    }

    .my_catalogue_div_opacity_0_to_1 {
        animation-name: opacity_0_to_1;
        animation-duration: 2s;
        animation-fill-mode: forwards;

    }

    .home_page {
        right: 0;
        margin: 0;
        position: absolute;
    }

    .show_time {
        position: fixed;
        bottom: 0;
        height: 40px;
        background: url(https://images.cnblogs.com/cnblogs_com/pythonywy/1456775/o_44.png);
        background-size: 100% 100%;
        color: black;
        line-height: 20px;
        text-align: center;
        width: 100%;
 
    }
</style>
<body>
<div class="my_catalogue_div" style="display: none">
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/10911404.html" target="_self">算法题</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/10862019.html"
                                  target="_self">python</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/10862096.html" target="_self">前端</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/11568799.html" target="_self">vue</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/10862343.html" target="_self">爬虫</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/11269267.html" target="_self">数据库</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/11379228.html"
                                  target="_self">django</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/11568936.html"
                                  target="_self">drf框架</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/11621158.html"
                                  target="_self">flask</a></span>
    <span class='my_catalogue'><a href="https://www.cnblogs.com/pythonywy/p/11621165.html"
                                  target="_self">微信小程序</a></span>
    <span class='my_catalogue home_page '><a href="https://www.cnblogs.com/pythonywy/" target="_self">首页</a></span>
</div>
<div class="show_time" style="display: none">
</div>
</body>
<script>
    var scrollfunc = function (e) {
        var my_catalogue_div = document.queryselector('.my_catalogue_div');
        var show_time = document.queryselector('.show_time');
        if (window.scrolly > 200) {
            e.deltay > 0 ? my_catalogue_div.classname = 'my_catalogue_div my_catalogue_div_opacity_0_to_1' : my_catalogue_div.classname = 'my_catalogue_div';
            e.deltay > 0 ? my_catalogue_div.style.display = 'block' : my_catalogue_div.style.display = 'none';
            e.deltay > 0 ? show_time.classname = 'show_time my_catalogue_div_opacity_0_to_1' : show_time.classname = 'show_time';
            e.deltay > 0 ? show_time.style.display = 'block' : show_time.style.display = 'none'
        }

    };
    /*注册事件*/
    if (document.addeventlistener) {
        document.addeventlistener('dommousescroll', scrollfunc, false);
    }//w3c
    window.onmousewheel = document.onmousewheel = scrollfunc;//ie/opera/chrome/safari
</script>

<script>
    //时间
    function get_time() {
        var obj = new date();
        var obj_time = obj.totimestring().split(' ')[0];
        var obj_data = obj.todatestring();
        var show_time = document.queryselector('.show_time');
        show_time.innerhtml = '<spen>' + obj_time + '</spen>' + '<br>' + '<spen>' + obj_data + '</spen>'
    }

    setinterval(get_time, 1000)
</script>

三.效果展示

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