我想问用css怎么实现表格边框如下图的线条效果？像被挖下去那样

Posted 2023-04-02

<style>
.lineheight:1px;width:100%;overflow:hidden;background-color:#fff;border-top:1px solid #ddd;
</style>
<p class="line"></p>

line的背景颜色和border颜色你自己定义就可以了。

参考技术A 两种方法：
1；用背景图片做，高度两个像素，让背景平铺就行了。
2；用边框做，上面DIV的下边框和下面DIV的上边框，也可以实现这样的效果。 参考技术B 你可以在设计图里直接切一个像素的图形平铺就可以了，再或者是你写两个线条的样式，根据设计图来取颜色，这样都可以达到目的。 参考技术C <table style="background-color: #E0E0E0;" border="1" width="100%" cellspacing="0">
<tr><td style="border-color: #A8A8A8;">1</td></tr>
<tr><td>2</td></tr>
</table>
主要是颜色的对比，我选的颜色可能不太好，你自己调色吧。

css3鼠标滑过实现动画线条边框

前言

现如今网页越来越趋近于动画，相信大家平时浏览网页或多或少都能看到一些动画效果，今天我们做一个通过 css3 鼠标滑过实现动画线条边框，下面一起看看吧。

---

实现效果

完整源码

<template>
    <div class="parentBox">
        <div class="contantBox">
            <ul class="shelfBox">
                <li>
                    <div class="bigBox">
                        <div class="itemBox">
                            <div class="textBox">
                                <p>1.无需下载安装包</p>
                                <p>2.可多人同时编辑</p>
                                <p>3.无需下载安装包</p>
                                <p>4.可实时预览内容</p>
                            </div>
                            <div class="beginbox"></div>
                            <div class="bomBox"></div>
                            <div class="leftBox"></div>
                            <div class="topBox"></div>
                            <div class="rightBox"></div>
                            <div class="pictureBox"><i class="circleBox"></i></div>
                        </div>
                        <div class="iconBox">
                            <div class="circleBox">+</div>
                        </div>
                    </div>
                </li>
            </ul>
        </div>
    </div>
</template>
<style scoped>
    .parentBox 
        margin: 0;
        padding: 0;
        border: 0;
        font: inherit;
        font-size: 100%;
        vertical-align: baseline
    

    ol,
    ul 
        list-style: none
    

    table 
        border-collapse: collapse;
        border-spacing: 0
    

    caption,
    td,
    th 
        text-align: left;
        font-weight: 400;
        vertical-align: middle
    

    .bigBox img 
        border: none
    


    .bigBox 
        text-decoration: none
    

    .bigBox:hover 
        cursor: pointer;
    

    img 
        max-width: 100%;
        vertical-align: middle
    

    .shelfBox:after,
    .shelfBox:before 
        content: " ";
        display: table
    

    .shelfBox:after 
        clear: both
    

    .contantBox 
        position: relative;
        background-color: #fff;
        zoom: 1
    


    .contantBox ul 
        position: absolute;
        left: 0;
        top: 0;
        width: 1218px;
        height: 432px;
        padding-top: 5px;
        transition: left .8s ease-in-out
    

    .contantBox li 
        float: left;
        width: 406px;
        height: 216px
    

    .contantBox li .bigBox 
        position: relative;
        display: block;
        width: 100%;
        height: 216px;
        padding: 10px 0 0 92px;
        zoom: 1
    

    .contantBox .itemBox 
        position: relative;
        width: 274px;
        height: 186px;
        padding: 20px 0 0 60px;
        background: url('https://hovertree.com/texiao/css3/32/images/hovertree10tanjpxxxxblxpxxxxxxxxxx-274-186.png') 0 0 no-repeat;
        color: #00a0ff;
        zoom: 1
    

    .textBox 
        color: #666;
    
    .textBox p
        margin: 14px 10px;
    

    .contantBox .beginbox 
        position: absolute;
        bottom: -2px;
        right: -2px;
        width: 34px;
        height: 10px;
        background-color: #fff
    

    .contantBox .bomBox 
        position: absolute;
        left: -2px;
        bottom: -2px;
        width: 295px;
        height: 15px;
        background-color: #fff
    

    .contantBox .leftBox 
        position: absolute;
        left: -2px;
        top: -2px;
        width: 15px;
        height: 189px;
        background-color: #fff
    

    .contantBox .topBox 
        position: absolute;
        right: -2px;
        top: -2px;
        width: 295px;
        height: 15px;
        background-color: #fff
    

    .contantBox .rightBox 
        position: absolute;
        right: -2px;
        bottom: -2px;
        width: 15px;
        height: 189px;
        background-color: #fff
    

    .contantBox .iconBox 
        position: absolute;
        left: 53px;
        top: 35px;
        width: 100px;
        height: 110px;
        padding-top: 12px;
        background-color: #fff;
        z-index: 11
    

    .contantBox .iconBox .circleBox 
        width: 80px;
        height: 80px;
        line-height: 80px;
        background: url('https://hovertree.com/texiao/css3/32/images/hovertree1.fjxivxxxxbqxvxxxxxxxxxx-80-80.png') 0 0 no-repeat;
        text-align: center;
        color: #359EFB;
        font-size: 28px;
    

    .contantBox .iconBox .iconfont 
        font-size: 32px;
        color: #00a0ff
    

    .contantBox .pictureBox 
        position: absolute;
        right: -8px;
        bottom: -3px;
        width: 0;
        height: 16px;
        background-color: #fff;
        overflow: hidden
    

    .contantBox .pictureBox .circleBox 
        float: right;
        width: 17px;
        height: 16px;
        background: url('https://hovertree.com/texiao/css3/32/images/hovertree15pjohvxxxxcaxpxxxxxxxxxx-16-16.png') 0 0 no-repeat
    

    .contantBox .bigBox:hover .textBox 
        color: #00a0ff
    

    .contantBox .bigBox:hover .bomBox 
        animation: borderslideBottom .15s linear 0s 1;
        animation-fill-mode: forwards
    

    .contantBox .bigBox:hover .leftBox 
        animation: bordersildeLeft .2s linear .15s 1;
        animation-fill-mode: forwards
    

    .contantBox .bigBox:hover .topBox 
        animation: bordersildeTop .15s linear .35s 1;
        animation-fill-mode: forwards
    

    .contantBox .bigBox:hover .rightBox 
        animation: bordersildeRight .2s linear .5s 1;
        animation-fill-mode: forwards
    

    .contantBox .bigBox:hover .pictureBox 
        animation: bordersildeEnd .1s linear .7s 1;
        animation-fill-mode: forwards
    


    @-moz-keyframes borderslideBottom 
        from 
            width: 295px
        

        to 
            width: 0
        
    

    @-webkit-keyframes borderslideBottom 
        from 
            width: 295px
        

        to 
            width: 0
        
    

    @keyframes borderslideBottom 
        from 
            width: 295px
        

        to 
            width: 0
        
    

    @-moz-keyframes bordersildeLeft 
        from 
            height: 189px
        

        to 
            height: 0
        
    

    @-webkit-keyframes bordersildeLeft 
        from 
            height: 189px
        

        to 
            height: 0
        
    

    @keyframes bordersildeLeft 
        from 
            height: 189px
        

        to 
            height: 0
        
    

    @-moz-keyframes bordersildeTop 
        from 
            width: 295px
        

        to 
            width: 0
        
    

    @-webkit-keyframes bordersildeTop 
        from 
            width: 295px
        

        to 
            width: 0
        
    

    @keyframes bordersildeTop 
        from 
            width: 295px
        

        to 
            width: 0
        
    

    @-moz-keyframes bordersildeRight 
        from 
            height: 189px
        

        to 
            height: 0
        
    

    @-webkit-keyframes bordersildeRight 
        from 
            height: 189px
        

        to 
            height: 0
        
    

    @keyframes bordersildeRight 
        from 
            height: 189px
        

        to 
            height: 0
        
    

    @-moz-keyframes bordersildeEnd 
        from 
            width: 0
        

        to 
            width: 34px
        
    

    @-webkit-keyframes bordersildeEnd 
        from 
            width: 0
        

        to 
            width: 34px
        
    

    @keyframes bordersildeEnd 
        from 
            width: 0
        

        to 
            width: 34px
        
    
</style>