Question

如何在css3中创建箭头？就像这样。

enter image description here

Answer 1

<div class="triangle-left">
    <div></div>
</div>

.triangle-left {
  border-color: transparent black transparent transparent;
  border-style: solid;
  border-width: 20px;
  width: 0;
  height: 0;
}

.triangle-left div
{
  border-color: transparent white transparent transparent;
  border-style: solid;
  border-width: 10px;
  width: 0;
  height: 0;
  position:relative;
  top:-9px;
  left:0px;
}

这是一个三角形，内部有一个白色三角形，呈现出箭头的外观。有关CSS3三角形的更多信息，请参见此处：

http://jonrohan.me/guide/css/creating-triangles-in-css/

Answer 2

请参阅JsFiddle

HTML

<div class="angle"></div>

CSS

.angle:after { /* Thanks to :after just one div is necessary */
    content: '.';
    border-top: 20px solid #000; /* NW triangle gap */
    border-bottom: 20px solid #000; /* SW triangle gap */
    border-left: none;
    border-right: 20px solid transparent; /* W triangle */
    position: relative;
    left: 20px;
}
.angle {
    font-size: 0px; line-height: 0%; width: 0px; /* Necessary to not screw up the layout */
    border-top: 20px solid transparent; /* NE triangle gap */
    border-bottom: 20px solid transparent; /* SE triangle gap */
    border-left: none;
    border-right: 20px solid #000; /* E triangle */
}

更新：较小的版本

这是两个重叠的三角形。一个是黑色，一个是白色。

JsFiddle

相同的HTML，不同的CSS

.angle:after {
    content: '.';
    border-top: 10px solid transparent; 
    border-bottom: 10px solid transparent;
    border-left: none;
    border-right: 10px solid white; 
    position: relative;
    left: 5px;
}
.angle {
    font-size: 0px; line-height: 0%; width: 0px; /* Necessary to not screw up the layout */
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: none;
    border-right: 10px solid #000;
}

Answer 3

您不必使用CSS 3 - 使用HTML实体创建它：

<span>&#8249;</span>

Answer 4

只需使用CSS3的rotate

添加替代方案

Demo

CSS

.arrow { width: 20px; height: 20px; overflow: hidden; }
.arrow span  {
    display: block;
    border: 4px #000 solid;
    background: #fff;
    width: 14px;
    height: 14px;
    float:right;
    margin-right: -12px;

    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
    filter: progid:DXImageTransform.Microsoft.Matrix(
         M11=0.7071067811865476, M12=-0.7071067811865475, M21=0.7071067811865475, M22=0.7071067811865476, sizingMethod='auto expand');
    zoom: 1;
}

HTML

<div class="arrow"><span></span></div>

如何在css3中创建箭头？

4 个答案:

Demo