在CSS中制作锯齿状三角形边框

时间:2012-12-08 05:55:33

标签: css css3 css-shapes

我在Photoshop中有一个像这样的边缘的形状:

image

是否可以将重复的三角形作为CSS的边框?

5 个答案:

答案 0 :(得分:35)

您可以使用css3渐变来创建Z字形图案背景,使用after css伪将其应用为边框。

HTML:

<div class="header"><h1>This is a header</h1></div>

CSS:

.header{
color:white;
background-color:#2B3A48;
text-align:center;
}
.header:after {
content: " ";
    display:block;
    position: relative;
top:0px;left:0px;
    width:100%;
    height:36px;
    background: linear-gradient(#2B3A48 0%, transparent 0%), linear-gradient(135deg, #272220 33.33%, transparent 33.33%) 0 0%, #272220 linear-gradient(45deg, #272220 33.33%, #2B3A48 33.33%) 0 0%;
    background: -webkit-linear-gradient(#2B3A48 0%, transparent 0%), -webkit-linear-gradient(135deg, #272220 33.33%, transparent 33.33%) 0 0%, #272220 -webkit-linear-gradient(45deg, #272220 33.33%, #2B3A48 33.33%) 0 0%;
    background: -o-linear-gradient(#2B3A48 0%, transparent 0%), -o-linear-gradient(135deg, #272220 33.33%, transparent 33.33%) 0 0%, #272220 -o-linear-gradient(45deg, #272220 33.33%, #2B3A48 33.33%) 0 0%;
    background: -moz-linear-gradient(#2B3A48 0%, transparent 0%), -moz-linear-gradient(135deg, #272220 33.33%, transparent 33.33%) 0 0%, #272220 -moz-linear-gradient(45deg, #272220 33.33%, #2B3A48 33.33%) 0 0%;
    background-repeat: repeat-x;
    background-size: 0px 100%, 9px 27px, 9px 27px;
    }

来源:CSS Zigzag Border with a Textured Background

JSFiddle:http://jsfiddle.net/kA4zK/

答案 1 :(得分:12)

对于未来的观众,我发现@extramaster's answer的这种改编更为简单。

它基本上是相同的,但它使用少一个背景渐变,并允许支持对象(我的标记中的.navbar)显示而不是将第二种颜色硬编码到之字形。

JsFiddle: http://jsfiddle.net/861gjx0b/2/

<强> HTML:

<div class="header"><h1>This is a header</h1></div>
<nav class="navbar"></nav>

<强>的CSS:

.header{
      position:relative;
      color:white;
      background-color:#2B3A48;
      text-align:center;
}

.navbar {
      background: #272220;
      height:20px;
}    

.header:after {
  content: "";
  position: absolute;      
  display: block;

  height: 10px;
  bottom: -10px; /* -height */
  left:0;
  right:0;

  /* TODO Add browser prefixes */
  background:
    linear-gradient(
      45deg, transparent 33.333%,
      #2B3A48 33.333%, #2B3A48 66.667%,
      transparent 66.667%
    ),linear-gradient(
      -45deg, transparent 33.333%,
      #2B3A48 33.333%, #2B3A48 66.667%,
      transparent 66.667%
    );

    background-size: 8px 20px; /* toothSize doubleHeight */
    background-position: 0 -10px; /* horizontalOffset -height */
}

答案 2 :(得分:1)

您可以非常轻松地使用CSS创建individual triangle(只需调整边框属性)。为了实现这一点,您需要自己生成相当多的标记。我建议不要这样做。

相反,您可能最好使用包含单个三角形的单个图像(最好是透明的.png),然后使用background-imagebackground-repeatrepeat-x)属性将其绑定到div(你的“边界”)。

不幸的是,使用纯CSS还没有一种直接的方法来实现这一点。

答案 3 :(得分:1)

CSS3中有一个border-image属性。 也许你可以按照自己想要的方式解决问题。更多http://www.w3schools.com/cssref/css3_pr_border-image.asp

答案 4 :(得分:0)

我个人认为,剪切路径比复杂的背景渐变更易于使用/理解。

body {
  font-family:Roboto,'Open Sans',Helvetica,sans-serif;
}
.container {
  background:#ddd;
  margin:0 auto; 
  max-width:800px;
  padding:30px;
}
h1:first-child {margin:0;}

.jagged-bottom {
  position:relative;
}
.jagged-bottom:after {
    background:#ddd;
    content:"";
    height:2vw;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    clip-path:polygon(
       0 0, 2.5% 100%, 5% 0,  7.5% 100%, 
     10% 0,12.5% 100%,15% 0, 17.5% 100%, 
     20% 0,22.5% 100%,25% 0, 27.5% 100%, 
     30% 0,32.5% 100%,35% 0, 37.5% 100%, 
     40% 0,42.5% 100%,45% 0, 47.5% 100%, 
     50% 0,52.5% 100%,55% 0, 57.5% 100%, 
     60% 0,62.5% 100%,65% 0, 67.5% 100%, 
     70% 0,72.5% 100%,75% 0, 77.5% 100%, 
     80% 0,82.5% 100%,85% 0, 87.5% 100%, 
     90% 0,92.5% 100%,95% 0, 97.5% 100%, 100% 0);
  }
}
<div class="container jagged-bottom">
  <h1>Looks Like A Receipt</h1>
  <p>Simply adjust the clip path on the pseudo-element if you want more or fewer spikes, and the height if you want them to be taller or shorter.</p>
</div>