Question

如何使用CSS3实现这样的设计。我试图给它一个非常高的透明边框，但这会使锥度向外而不是向内。

看起来像CSS可以实现的东西，这就是为什么我不愿意使用图像的原因。

enter image description here

Answer 1

我建议您使用:before和:after来覆盖＆＃39;渐变的部分内容div。

问题是边界不支持＆＃39;％＆＃39;作为标准。因此，如果您的div需要响应更改边框的宽度，则必须使用@media查询，如下所示。

<强> HTML

<div id="angled"></div>

<强> CSS

body{
    margin:0;
    padding:0;
}
#angled{
    background: #6393c1;
    background: -moz-linear-gradient(top,  #6393c1 0%, #cfe7fa 100%);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#6393c1), color-stop(100%,#cfe7fa));
    background: -webkit-linear-gradient(top,  #6393c1 0%,#cfe7fa 100%);
    background: -o-linear-gradient(top,  #6393c1 0%,#cfe7fa 100%);
    background: -ms-linear-gradient(top,  #6393c1 0%,#cfe7fa 100%);
    background: linear-gradient(to bottom,  #6393c1 0%,#cfe7fa 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#6393c1', endColorstr='#cfe7fa',GradientType=0 );
    width:500px;
    margin:0 auto;
    height:200px;
    position:relative;
}
#angled:before,
#angled:after{
    -moz-box-sizing: border-box; 
    -webkit-box-sizing: border-box; 
    box-sizing: border-box;
    content:" ";
    height:0;
    left:0;
    right:0;
    position:absolute;
    bottom:0;
}
#angled:after{
    border:30px solid rgba(255, 255, 255, 0);
    border-bottom-width:0;
    border-left-width:200px;
    border-left-color:white;
}
#angled:before{
    border:60px solid rgba(255, 255, 255, 0);
    border-bottom-width:0;
    border-right-width:300px;
    border-right-color:white;
}
@media (min-width:800px){
    #angled{
        width:800px;
    }
    #angled:after{
        border-left-width:350px;
    }
    #angled:before{
        border-right-width:450px;
    }
}
@media (min-width:1200px){
    #angled{
        width:1200px;
    }
    #angled:after{
        border-left-width:500px;
    }
    #angled:before{
        border-right-width:700px;
    }
}

使用Ultimate CSS Gradient Generator生成的渐变

Answer 2

以下内容应为您提供一个起点，关键是使用div s :before和after伪元素的边框创建三角形。

Demo Fiddle

HTML

<div></div>

CSS

html, body, div {
    width:100%;
    margin:0;
    padding:0;
}
div {
    height:100px;
    width:600px;
    background:#007bff;
}
div:before, div:after {
    content:'';
    position:absolute;
    display:block;
}
div:before {
    width: 0px;
    height: 0px;
    top:100px;
    border-style: solid;
    border-width: 0px 200px 50px 0;
    border-color: transparent #007bff transparent transparent;
}
div:after {
    width: 0px;
    height: 0px;
    border-style: solid;
    border-width: 0px 0 50px 400px;
    border-color: transparent transparent transparent #007bff;
    top:100px;
    left:200px;
}

Answer 3

看起来不错，所以没有？

我留下一个例子

<强> http://jsfiddle.net/jdQaA/1/

    header{
    display:inline-block;
    background: white;
    text-align: center;
    width: 100%;
}
.main{
    display:inline-block;
    width: 1024px;
    margin:0 auto;
    min-height: 100px;
background: #1e5799; /* Old browsers */
background: -moz-linear-gradient(top,  #1e5799 0%, #7db9e8 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#1e5799), color-stop(100%,#7db9e8)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #1e5799 0%,#7db9e8 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #1e5799 0%,#7db9e8 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #1e5799 0%,#7db9e8 100%); /* IE10+ */
background: linear-gradient(to bottom,  #1e5799 0%,#7db9e8 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#1e5799', endColorstr='#7db9e8',GradientType=0 ); /* IE6-9 */

    position:relative;
}

.main:before{
content: '';
position: absolute;
top: 100%;
left: 100px;
height: 1px;
width: 100%;
border-left: 924px solid #7db9e8;
border-bottom: 50px solid transparent;
}

.main:after{
content: '';
position: absolute;
top: 100%;
left: 0px;
height: 1px;
width: auto;
border-left: 100px solid #7db9e8;
border-bottom: 50px solid transparent;
-webkit-transform: rotateY(180deg);
-moz-transform: rotateY(180deg);
-ms-transform: rotateY(180deg);
-o-transform: rotateY(180deg);
transform: rotateY(180deg);
}
.container{
    width: 1024px;
    display:inline-block;
}
.submain{
    float:right;
    position: relative;
    top: 60px;
    width: 300px;
    height: 300px;
background: #7db9e8; /* Old browsers */
background: -moz-linear-gradient(top,  #7db9e8 0%, #1e5799 97%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#7db9e8), color-stop(97%,#1e5799)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #7db9e8 0%,#1e5799 97%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #7db9e8 0%,#1e5799 97%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #7db9e8 0%,#1e5799 97%); /* IE10+ */
background: linear-gradient(to bottom,  #7db9e8 0%,#1e5799 97%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#7db9e8', endColorstr='#1e5799',GradientType=0 ); /* IE6-9 */


    margin-top: -25px;
}

.submain:before{
    content: '';
    position: absolute;
    bottom: 100%;
    left: 0px;
    height: 1px;
    width: auto;
    border-right: 300px solid #7CB7E7;
    border-top: 25px solid transparent;
}

不寻常的锥形div设计

3 个答案:

Demo Fiddle