CSS绘制三角形

我们的网页因为 CSS 而呈现千变万化的风格。这一看似简单的样式语言在使用中非常灵活，只要你发挥创意就能实现很多比人想象不到的效果。特别是随着 CSS3 的广泛使用，更多新奇的 CSS 作品涌现出来。

今天给大家带来 CSS 三角形绘制方法

代码如下:

#triangle-up {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 100px solid red;
}

---

代码如下:

#triangle-down {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-top: 100px solid red;
}

---

代码如下:

#triangle-left {
    width: 0;
    height: 0;
    border-top: 50px solid transparent;
    border-right: 100px solid red;
    border-bottom: 50px solid transparent;
}

---

代码如下:

#triangle-right {
    width: 0;
    height: 0;
    border-top: 50px solid transparent;
    border-left: 100px solid red;
    border-bottom: 50px solid transparent;
}

---

代码如下:

#triangle-topleft {
    width: 0;
    height: 0;
    border-top: 100px solid red;
    border-right: 100px solid transparent;
}

---

代码如下:

#triangle-topright {
    width: 0;
    height: 0;
    border-top: 100px solid red;
    border-left: 100px solid transparent; 
}

---

代码如下:

#triangle-bottomleft {
    width: 0;
    height: 0;
    border-bottom: 100px solid red;
    border-right: 100px solid transparent;
}

---

代码如下:

#triangle-bottomright {
    width: 0;
    height: 0;
    border-bottom: 100px solid red;
    border-left: 100px solid transparent;
}

---

talk bubble

.box{            width: 100px;            height: 60px;               border-radius: 10px;            background-color: blue;            color: #fff;            line-height: 60px;            text-align: center;            position: relative;        }.box:before{    content:"";    position:absolute;    right: 100%;          top:17px;          width: 0;          height: 0;    border-right: 20px solid blue;    border-bottom: 13px solid transparent;    border-top:13px solid transparent;}

pointer

    .box{            width: 200px;            height: 40px;            background-color: red;            position: relative;        }    .box:before{        content:"";        position:absolute;        background-color: #fff;        right:-20px;        bottom: 0;        width: 0;        height: 0;        border-left: 20px solid red;        border-bottom: 20px solid transparent;        border-top:20px solid transparent;    }    .box:after{        content:"";        position:absolute;        width: 0;        height: 0;        border-left: 20px solid #fff;        border-bottom: 20px solid transparent;        border-top:20px solid transparent;    }

diamond

.box{            width: 50px;            border-bottom: 25px solid red;            border-right: 25px solid transparent;            border-left: 25px solid transparent;            position: relative;         }     .box:after{         content:"";         position:absolute;         width: 0;         height: 0;         top:25px;         left:-25px;         border-top: 70px solid red;         border-left: 50px solid transparent;         border-right:50px solid transparent;     }