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CSS绘制常见图形.html
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CSS绘制常见图形.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>CSS画图形</title>
<style>
div {
background: gray;
margin: 20px;
}
.square {
height: 100px;
width: 100px;
}
.rectangle {
height: 100px;
width: 200px;
}
.circle {
height: 100px;
width: 100px;
border-radius: 50%;
}
.oval {
margin: 0 50px;
height: 100px;
width: 200px;
border-radius: 100px / 50%;
}
.triangle-origin {
width: 20px;
height: 20px;
border-top: 100px solid black;
border-right: 100px solid red;
border-bottom: 100px solid blue;
border-left: 100px solid orange;
}
.isosceles-triangle {
width: 0px;
height: 0px;
border-right: 50px solid transparent;
border-left: 50px solid transparent;
border-bottom: 100px solid blue;
}
.regular-triangle {
width: 0px;
height: 0px;
border-right: 100px solid transparent;
border-left: 100px solid transparent;
border-bottom: 150px solid blue;
}
.triangle-up {
width: 0px;
height: 0px;
border-right: 50px solid transparent;
border-left: 50px solid transparent;
border-bottom: 100px solid blue;
}
.triangle-down {
width: 0px;
height: 0px;
border-right: 50px solid transparent;
border-left: 50px solid transparent;
border-top: 100px solid blue;
}
.triangle-left {
width: 0px;
height: 0px;
border-bottom: 50px solid transparent;
border-top: 50px solid transparent;
border-right: 100px solid blue;
}
.triangle-right {
width: 0px;
height: 0px;
border-bottom: 50px solid transparent;
border-top: 50px solid transparent;
border-left: 100px solid blue;
}
.triangle-topleft {
width: 0;
height: 0;
border-right: 100px solid transparent;
border-top: 100px solid red;
}
.triangle-topright {
width: 0;
height: 0;
border-left: 100px solid transparent;
border-top: 100px solid red;
}
.triangle-rightbottom {
width: 0;
height: 0;
border-left: 100px solid transparent;
border-bottom: 100px solid red;
}
.triangle-leftbottom {
width: 0;
height: 0;
border-right: 100px solid transparent;
border-bottom: 100px solid red;
}
.talkbubble {
width: 120px;
height: 80px;
background: red;
position: relative;
border-radius: 10px;
}
.talkbubble:before {
content:"";
position: absolute;
right: 100%;
top: 26px;
width: 0;
height: 0;
border-top: 13px solid transparent;
border-right: 26px solid red;
border-bottom: 13px solid transparent;
}
.heart {
position: relative;
width: 100px;
height: 90px;
}
.heart:before,
.heart:after {
position: absolute;
content: "";
left: 50px;
top: 10px;
width: 50px;
height: 80px;
background: red;
border-radius: 50px 50px 0 0;
transform: rotate(-45deg);
transform-origin: 0 100%;
}
.heart:after {
left: 0;
transform: rotate(45deg);
transform-origin :100% 100%;
}
</style>
</head>
<body>
正方形
<div class="square"></div>
长方形
<div class="rectangle"></div>
圆
<div class="circle"></div>
椭圆
<div class="oval"></div>
画三角形原理
<div class="triangle-origin"></div>
<strong>三角形的上下左右的方向确认其实是向哪个方向哪个方向就没有</strong><br />
等腰三角形
<div class="isosceles-triangle"></div>
等边三角形
<div class="regular-triangle"></div>
上三角形(transparent默认父元素的颜色)
<div class="triangle-up"></div>
下三角形
<div class="triangle-down"></div>
左三角形
<div class="triangle-left"></div>
右三角形
<div class="triangle-right"></div>
<strong>(左上 <- 右上 )</strong><br />
左上三角形
<div class="triangle-topleft"></div>
<strong>(左上 -> 右上 )</strong><br />
右上三角形
<div class="triangle-topright"></div>
<strong>(左下 -> 右下 )</strong><br />
右下三角形
<div class="triangle-rightbottom"></div>
<strong>(左下 <- 右下 )</strong><br />
左下三角形
<div class="triangle-leftbottom"></div>
会话框
<div class="talkbubble"></div>
爱心
<div class="heart"></div>
</body>
</html>