CSS3的常见边框汇总

简介: CSS3的常见边框汇总
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>CSS3 边框</title>
    <style>
        body, ul, li, dl, dt, dd, h1, h2, h3, h4, h5 {
            margin: 0;
            padding: 0;
        }
        body {
            background-color: #F7F7F7;
        }
        .wrapper {
            width: 1000px;
            margin: 0 auto;
            padding: 20px;
            box-sizing: border-box;
        }
        header {
            padding: 20px 0;
            margin-bottom: 20px;
            text-align: center;
        }
        header h3 {
            line-height: 1;
            font-weight: normal;
            font-size: 28px;
        }
        .main {
            /*overflow: hidden;*/
        }
        .main:after {
            content: '';
            clear: both;
            display: block;
        }
        .main .item {
            width: 210px;
            height: 210px;
            margin: 0 30px 30px 0;
            display: flex;
            position: relative;
            background-color: #FFF;
            float: left;
            box-shadow: 2px 2px 5px #CCC;
        }
        .main .item:after {
            content: attr(data-brief);
            display: block;
            width: 100%;
            height: 100%;
            text-align: center;
            line-height: 210px;
            position: absolute;
            top: 0;
            left: 0;
            color: #FFF;
            font-family: '微软雅黑';
            font-size: 18px;
            background-color: rgba(170, 170, 170, 0);
            z-index: -1;
            transition: all 0.3s ease-in;
        }
        .main .item:hover:after {
            background-color: rgba(170, 170, 170, 0.6);
            z-index: 100;
        }
        .main .item:nth-child(4n) {
            margin-right: 0;
        }
        /*.main .item:nth-last-child(-n+5) {
            margin-bottom: 0;
        }*/
        /* 以上是骨架样式 */
        /* 1、2、3、4 顺时针 */
        .border-radius {
            width: 180px;
            height: 180px;
            margin: auto;
            border: 1px solid red;
            /*border-radius: 50% 30% 20%;*/
        }
        .square {
            border-radius: 0;
        }
        /*拱形*/
        .item:nth-child(1) .border-radius {
            border-radius: 90px;
        }
        /*拱形*/
        .item:nth-child(2) .border-radius {
            border-radius: 90px 90px 0 0;
        }
        /*半圆*/
        .item:nth-child(3) .border-radius {
            height: 90px;
            border-radius: 90px 90px 0 0;
        }
        /*左上角*/
        .item:nth-child(4) .border-radius {
            /*height: 90px;*/
            border-radius: 90px 0 0 0;
        }
        /*四分之一圆*/
        .item:nth-child(5) .border-radius {
            width: 90px;
            height: 90px;
            border-radius: 90px 0 0 0;
        }
        /*横着的椭圆*/
        .item:nth-child(6) .border-radius {
            height: 90px;
            /*border-radius: 50%;*/
            border-radius: 90px 90px 90px 90px / 45px 45px 45px 45px;
            /*border-radius: 45px / 90px;*/
        }
        /*竖着的椭圆*/
        .item:nth-child(7) .border-radius {
            width: 90px;
            border-radius: 45px 45px 45px 45px / 90px 90px 90px 90px;
        }
        /*半个横着的椭圆*/
        .item:nth-child(8) .border-radius {
            height: 45px;
            border-radius: 90px 90px 0 0 / 45px 45px 0 0;
        }
        /*半个竖着的椭圆*/
        .item:nth-child(9) .border-radius {
            width: 45px;
            border-radius: 45px 0 0 45px / 90px 0 0 90px;
        }
        /*四分之一竖着的椭圆*/
        .item:nth-child(10) .border-radius {
            width: 45px;
            height: 90px;
            border-radius: 45px 0 0 0 / 90px 0 0 0;
        }
        /*饼环*/
        .item:nth-child(11) .border-radius {
            width: 40px;
            height: 40px;
            border: 70px solid red;
            border-radius: 90px;
        }
        /*圆饼*/
        .item:nth-child(12) .border-radius {
            width: 40px;
            height: 40px;
            border: 70px solid red;
            border-radius: 60px;
        }
        /*左上角圆饼*/
        .item:nth-child(13) .border-radius {
            width: 60px;
            height: 60px;
            border: 60px solid red;
            border-radius: 90px 0 0 0;
        }
        /*对角圆饼*/
        .item:nth-child(14) .border-radius {
            width: 60px;
            height: 60px;
            border: 60px solid red;
            border-radius: 90px 0 90px 0;
        }
        /*四边不同色*/
        .item:nth-child(15) .border-radius {
            width: 0px;
            height: 0px;
            border-width: 90px;
            border-style: solid;
            border-color: red green yellow blue;
        }
        /*右透明色*/
        .item:nth-child(16) .border-radius {
            width: 0px;
            height: 0px;
            border-width: 90px;
            border-style: solid;
            border-color: red green yellow blue;
            border-right-color: transparent;
        }
        /*圆右透明色*/
        .item:nth-child(17) .border-radius {
            width: 0px;
            height: 0px;
            border-width: 90px;
            border-style: solid;
            border-color: red;
            border-right-color: transparent;
            border-radius: 90px;
        }
        /*圆右红透明色*/
        .item:nth-child(18) .border-radius {
            width: 0px;
            height: 0px;
            border-width: 90px;
            border-style: solid;
            border-color: transparent;
            border-right-color: red;
            border-radius: 90px;
        }
        /*阴阳图前世*/
        .item:nth-child(19) .border-radius {
            width: 180px;
            height: 0px;
            border-top-width: 90px;
            border-bottom-width: 90px;
            border-style: solid;
            border-top-color: red;
            border-bottom-color: green;
            /*border-right-color: red;*/
            border-radius: 90px;
        }
        /*阴阳图前世2*/
        .item:nth-child(20) .border-radius {
            width: 180px;
            height: 90px;
            border-bottom-width: 90px;
            border-style: solid;
            border-bottom-color: green;
            background-color: red;
            /*border-right-color: red;*/
            border-radius: 90px;
        }
        /*阴阳图今生*/
        .item:nth-child(21) .border-radius {
            width: 180px;
            height: 90px;
            border-bottom-width: 90px;
            border-style: solid;
            border-bottom-color: green;
            background-color: red;
            border-radius: 90px;
            position: relative;
        }
        .item:nth-child(21) .border-radius::after,
        .item:nth-child(21) .border-radius::before {
            content: '';
            position: absolute;
            top: 50%;
            width: 20px;
            height: 20px;
            /*margin: -10px 0 0 0;*/
            border-width: 35px;
            border-style: solid;
            border-radius: 45px;
        }
        /*左阴阳*/
        .item:nth-child(21) .border-radius::after {
            background-color: red;
            border-color: green;
        }
        /*右阴阳*/
        .item:nth-child(21) .border-radius::before {
            background-color: green;
            border-color: red;
            right: 0;
        }
        /*右阴阳*/
        .item:nth-child(22) .border-radius {
            width: 180px;
            height: 90px;
            border-bottom-width: 90px;
            border-bottom-color: green;
            border-bottom-style: solid;
            background-color: red;
            border-radius: 90px;
            position: relative;
        }
        .item:nth-child(22) .border-radius::after,
        .item:nth-child(22) .border-radius::before {
            content: '';
            position: absolute;
            top: 50%;
            width: 20px;
            height: 20px;
            border-width: 35px;
            border-style: solid;
            border-radius: 45px;
        }
        .item:nth-child(22) .border-radius::before {
            border-color: green;
            background-color: red;
        }
        .item:nth-child(22) .border-radius::after {
            right: 0;
            border-color: red;
            background-color: green;
        }
        /*消息框*/
        .item:nth-child(23) .border-radius {
            width: 160px;
            height: 80px;
            background-color: red;
            border-radius: 6px;
            position: relative;
        }
        .item:nth-child(23) .border-radius::after {
            content: '';
            width: 0;
            height: 0;
            border-width: 10px;
            border-style: solid;
            border-color: transparent;
            border-right-color: red;
            position: absolute;
            top: 16px;
            left: -20px;
        }
        /*奇怪的图形*/
        .item:nth-child(24) .border-radius {
            width: 40px;
            height: 40px;
            border-width: 45px 0 45px 70px;
            border-style: solid;
            border-radius: 0 0 60px 0;
            border-color: red;
        }
        /*奇怪的图形2*/
        .item:nth-child(25) .border-radius {
            width: 100px;
            height: 40px;
            border-width: 45px 20px 45px 70px;
            border-style: solid;
            border-radius: 60px;
            border-color: red;
        }
        /*QQ对话*/
        .item:nth-child(26) .border-radius {
            width: 160px;
            height: 80px;
            background-color: red;
            border-radius: 6px;
            position: relative;
        }
        .item:nth-child(26) .border-radius::after {
            content: '';
            position: absolute;
            top: 0;
            right: -20px;
            width: 30px;
            height: 30px;
            border-width: 0 0 30px 30px;
            border-style: solid;
            border-bottom-color: red;
            border-left-color: transparent;
            border-radius: 0 0 60px 0;
        }
        /*圆角的百分比设置 */
        .item:nth-child(27) .border-radius {
            width: 180px;
            /*height: 180px;*/
            height: 90px;
            border-radius: 50%;
            border-radius: 90px/45px;
            /*百分比是按横竖两个对应的方向的长度进行计算*/
        }
    </style>
</head>
<body>
<div class="wrapper">
    <header>
        <h3>CSS3 边框圆角</h3>
    </header>
    <div class="main">
        <div class="item" data-brief="整圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="拱形">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="半圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="左上角">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="四分之一圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="横着的椭圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="竖着的椭圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="半个横着的椭圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="半个竖着的椭圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="四分之一竖着的椭圆">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="饼环">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="圆饼">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="左上角圆饼">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="对角圆饼">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="四边不同色">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="右透明色">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="圆右透明色">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="圆右红透明色">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="阴阳图前世">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="阴阳图前世2">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="阴阳图今生">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="阴阳图今生2">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="消息框">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="奇怪的图形">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="奇怪的图形2">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="QQ对话">
            <div class="border-radius"></div>
        </div>
        <div class="item" data-brief="圆角百分比">
            <div class="border-radius"></div>
        </div>
    </div>
</div>
</body>
</html>
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        .heart {
            width: 200px;
            height: 300px;
            /*border: 1px solid #000;*/
            margin: 100px auto;
            position: relative;
        }
        .heart::before, .heart::after {
            content: "左一半";
            width: 100%;
            height: 100%;
            position: absolute;
            background-color: red;
            left: 0;
            top: 0;
            border-radius: 100px 100px 0 0;
            transform: rotate(-45deg);
            text-align: center;
            line-height: 100px;
            color: yellow;
            font-size: 30px;
            font-family: "MIcrosoft Yahei";
        }
        .heart::after {
            content: "右一半";
            left: 71px;
            transform: rotate(45deg);
        }
    </style>
</head>
<body>
<div class="heart">
</div>
</body>
</html>

CSS3引入了许多新的边框样式和属性,增加了前端开发者设计和实现各种边框效果的灵活性。以下是一些常见的CSS3边框样式的汇总:

1. 边框颜色(border-color):通过设置边框的颜色属性可以改变边框的颜色值,例如:border-color: red。

2. 边框宽度(border-width):可以使用边框宽度属性来控制边框的粗细程度,例如:border-width: 2px。

3. 边框样式(border-style):通过设置边框样式属性可以改变边框的外观,常见的样式包括实线(solid)、虚线(dashed)、点线(dotted)等,例如:border-style: dashed。

4. 圆角边框(border-radius):使用border-radius属性可以为元素的边框添加圆角效果,例如:border-radius: 10px。

5. 阴影边框(box-shadow):可以通过box-shadow属性为元素的边框添加阴影效果,例如:box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2)。

6. 渐变边框(border-image):使用border-image属性可以为边框应用渐变效果,例如:border-image: linear-gradient(to right, red, blue) 1;

7. 双边框(outline):通过outline属性可以为元素添加双边框效果,例如:outline: 2px solid black。

当然,以下是一些常见的CSS3边框样式的代码示例:

1. 边框颜色、宽度和样式的组合:

```css

.example {

 border: 2px solid red;

}

```

2. 圆角边框:

```css

.example {

 border-radius: 10px;

}

```

3. 阴影边框:

```css

.example {

 box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);

}

```

4. 渐变边框:

```css

.example {

 border-image: linear-gradient(to right, red, blue) 1;

}

```

5. 双边框:

```css

.example {

 outline: 2px solid black;

}

```

这些代码示例可以作为您在项目中使用CSS3边框样式的起点,您可以根据自己的需求进行调整和扩展,创造出符合自己设计要求的独特边框效果。

 

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