本文主要是介绍CSS3圣诞树与雪，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
CSS3 Christmas Tree with Snow Today we will continue use CSS3 in drawing complex shapes. We will create very nice CSS3 Christmas Tree demonstration. We will be drawing the tree, six colored balls on it, three snow hills and snowfall.
CSS3圣诞树雪今天，我们将继续在绘制复杂的形状，使用CSS3。 我们将创建非常漂亮CSS3圣诞树演示。 我们将绘制树，树上六个彩色的球，三个雪山和降雪。
Here are our final result:
这是我们的最终结果：
现场演示
下载结果
Ok, download the example files and lets start coding !
好的，下载示例文件并开始编码！
步骤1. HTML (Step 1. HTML)
First, let us create the HTML markup. As you can see – the structure is quite minimal and contains only several DIV elements.
首先，让我们创建HTML标记。 如您所见–结构非常小，仅包含几个DIV元素。
index.html (index.html)
<!DOCTYPE html>
<html lang="en" ><head><meta charset="utf-8" /><title>CSS3 Christmas Tree with Snow | Script Tutorials</title><link href="css/layout.css" rel="stylesheet" type="text/css" /></head><body><header><h2>CSS3 Christmas Tree with Snow</h2><a href="https://www.script-tutorials.com/css3-christmas-tree-with-snow/" class="stuts">Back to original tutorial on <span>Script Tutorials</span></a></header><div class="container"><div class="bottom_snow"></div><div class="tree"></div><div class="tree_bot"></div><div class="ball red"></div><div class="ball green"></div><div class="ball blue"></div><div class="ball red rsmall"></div><div class="ball green gsmall"></div><div class="ball blue bsmall"></div><h1>Happy Holidays</h1><div class="fall_snow"></div></div></body>
</html>
<!DOCTYPE html>
<html lang="en" ><head><meta charset="utf-8" /><title>CSS3 Christmas Tree with Snow | Script Tutorials</title><link href="css/layout.css" rel="stylesheet" type="text/css" /></head><body><header><h2>CSS3 Christmas Tree with Snow</h2><a href="https://www.script-tutorials.com/css3-christmas-tree-with-snow/" class="stuts">Back to original tutorial on <span>Script Tutorials</span></a></header><div class="container"><div class="bottom_snow"></div><div class="tree"></div><div class="tree_bot"></div><div class="ball red"></div><div class="ball green"></div><div class="ball blue"></div><div class="ball red rsmall"></div><div class="ball green gsmall"></div><div class="ball blue bsmall"></div><h1>Happy Holidays</h1><div class="fall_snow"></div></div></body>
</html>
步骤2. CSS (Step 2. CSS)
Now, there are the CSS rules that will turn our boring DIVs into a magical set of Christmas card elements. I have already commented the CSS below, so you can see the major parts of this file.
现在，有一些CSS规则会将无聊的DIV变成一组神奇的圣诞贺卡元素。 我已经在下面评论了CSS，因此您可以看到此文件的主要部分。
css / slideshow.css (css/slideshow.css)
*{margin:0;padding:0;
}
body {background-color:#eee;color:#fff;font:14px/1.3 Arial,sans-serif;
}
header {background-color:#212121;box-shadow: 0 -1px 2px #111111;display:block;height:70px;position:relative;width:100%;z-index:100;
}
header h2{font-size:22px;font-weight:normal;left:50%;margin-left:-400px;padding:22px 0;position:absolute;width:540px;
}
header a.stuts,a.stuts:visited{border:none;text-decoration:none;color:#fcfcfc;font-size:14px;left:50%;line-height:31px;margin:23px 0 0 110px;position:absolute;top:0;
}
header .stuts span {font-size:22px;font-weight:bold;margin-left:5px;
}
/* style the main area */
.container {height: 500px;margin: 50px auto;overflow: hidden;position: relative;width: 800px;background-color: #0093d8;background: -moz-linear-gradient(top, #0093d8, #fff);background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #fff),color-stop(1, #0093d8));-moz-box-shadow: 0 10px 10px rgba(0,0,0,0.5);-webkit-box-shadow: 0 10px 10px rgba(0,0,0,0.5);box-shadow: 0 10px 10px rgba(0,0,0,0.5);
}
/* style the bottom snow */
.bottom_snow {position: absolute;z-index: 5;top: 400px;left: 50%;margin-left: -500px;width: 1000px;height: 1000px;background: #e2e2e2;border-radius: 1000px;-moz-border-radius: 1000px;-webkit-border-radius: 1000px;
}
.bottom_snow:before , .bottom_snow:after {background-color: #fff;content: "";height: 1000px;position: absolute;top: -25px;width: 1000px;border-radius: 1000px;-moz-border-radius: 1000px;-webkit-border-radius: 1000px;
}
.bottom_snow:before {left: 400px;
}
.bottom_snow:after {right: 400px;
}
/* style the label */
h1 {color: #FAFAFA;font: bold 80px 'Comic Sans MS',Arial;text-align: center;text-shadow: 2px 2px 1px rgba(0, 0, 0, 0.85), 4px 4px 0 #CFEAED;text-transform: uppercase;-webkit-user-select: none;-khtml-user-select: none;-moz-user-select: none;-o-user-select: none;user-select: none;
}
/* style the tree */
.tree, .tree:before, .tree:after, .tree_bot, .tree_bot:before, .tree_bot:after {height: 0;position: absolute;width: 0;border-radius: 40px;-moz-border-radius: 40px;-webkit-border-radius: 40px;
}
.tree {border-left: 20px solid transparent;border-right: 20px solid transparent;border-bottom: 20px solid green;left: 390px;top: 135px;
}
.tree:before {content:'';border-left: 40px solid transparent;border-right: 40px solid transparent;border-bottom: 40px solid green;left: -40px;top: 15px;
}
.tree:after {content:'';border-left: 60px solid transparent;border-right: 60px solid transparent;border-bottom: 60px solid green;left: -60px;top: 40px;
}
/* tree, bottom side */
.tree_bot {border-left: 80px solid transparent;border-right: 80px solid transparent;border-bottom: 80px solid green;left: 330px;top: 210px;
}
.tree_bot:before {content:'';border-left: 100px solid transparent;border-right: 100px solid transparent;border-bottom: 100px solid green;left: -100px;top: 40px;
}
.tree_bot:after {content:'';border-left: 120px solid transparent;border-right: 120px solid transparent;border-bottom: 120px solid green;left: -120px;top: 80px;
}
/* style the balls */
.ball {height: 40px;left: 390px;position: absolute;top: 345px;width: 40px;border-radius: 40px;-moz-border-radius: 40px;-webkit-border-radius: 40px;box-shadow: 0 0 5px #777;-moz-box-shadow: 0 0 5px #777;-webkit-box-shadow: 0 0 5px #777;
}
.red {background-color: #c8171f;background-image: -webkit-radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);background-image: -moz-radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);background-image: -o-radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);background-image: radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);left: 340px;top: 325px;
}
.blue {background-color: #00a1ee;background-image: -webkit-radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);background-image: -moz-radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);background-image: -o-radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);background-image: radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);
}
.green {background-color: #4d8d00;background-image: -webkit-radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);background-image: -moz-radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);background-image: -o-radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);background-image: radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);left: 440px;top: 325px;
}
.rsmall, .gsmall, .bsmall {height: 25px;width: 25px;
}
.rsmall {left: 440px;top: 255px;
}
.bsmall {left: 350px;top: 255px;
}
.gsmall {left: 395px;top: 275px;
}
/* style the falling snow */
.fall_snow {background-image: url('../images/snow1.png'), url('../images/snow2.png'), url('../images/snow3.png');height: 100%;left: 0;position: absolute;top: 0;width: 100%;-webkit-animation: snow 10s linear infinite;-moz-animation: snow 10s linear infinite;-ms-animation: snow 10s linear infinite;animation: snow 10s linear infinite;
}
@keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 500px 1000px, 200px 400px, -100px 300px;}
}
@-moz-keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 400px 1000px, 200px 400px, 100px 300px;}
}
@-webkit-keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 500px 1000px, 200px 400px, -100px 300px;}
}
@-ms-keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 500px 1000px, 200px 400px, -100px 300px;}
}
*{margin:0;padding:0;
}
body {background-color:#eee;color:#fff;font:14px/1.3 Arial,sans-serif;
}
header {background-color:#212121;box-shadow: 0 -1px 2px #111111;display:block;height:70px;position:relative;width:100%;z-index:100;
}
header h2{font-size:22px;font-weight:normal;left:50%;margin-left:-400px;padding:22px 0;position:absolute;width:540px;
}
header a.stuts,a.stuts:visited{border:none;text-decoration:none;color:#fcfcfc;font-size:14px;left:50%;line-height:31px;margin:23px 0 0 110px;position:absolute;top:0;
}
header .stuts span {font-size:22px;font-weight:bold;margin-left:5px;
}
/* style the main area */
.container {height: 500px;margin: 50px auto;overflow: hidden;position: relative;width: 800px;background-color: #0093d8;background: -moz-linear-gradient(top, #0093d8, #fff);background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #fff),color-stop(1, #0093d8));-moz-box-shadow: 0 10px 10px rgba(0,0,0,0.5);-webkit-box-shadow: 0 10px 10px rgba(0,0,0,0.5);box-shadow: 0 10px 10px rgba(0,0,0,0.5);
}
/* style the bottom snow */
.bottom_snow {position: absolute;z-index: 5;top: 400px;left: 50%;margin-left: -500px;width: 1000px;height: 1000px;background: #e2e2e2;border-radius: 1000px;-moz-border-radius: 1000px;-webkit-border-radius: 1000px;
}
.bottom_snow:before , .bottom_snow:after {background-color: #fff;content: "";height: 1000px;position: absolute;top: -25px;width: 1000px;border-radius: 1000px;-moz-border-radius: 1000px;-webkit-border-radius: 1000px;
}
.bottom_snow:before {left: 400px;
}
.bottom_snow:after {right: 400px;
}
/* style the label */
h1 {color: #FAFAFA;font: bold 80px 'Comic Sans MS',Arial;text-align: center;text-shadow: 2px 2px 1px rgba(0, 0, 0, 0.85), 4px 4px 0 #CFEAED;text-transform: uppercase;-webkit-user-select: none;-khtml-user-select: none;-moz-user-select: none;-o-user-select: none;user-select: none;
}
/* style the tree */
.tree, .tree:before, .tree:after, .tree_bot, .tree_bot:before, .tree_bot:after {height: 0;position: absolute;width: 0;border-radius: 40px;-moz-border-radius: 40px;-webkit-border-radius: 40px;
}
.tree {border-left: 20px solid transparent;border-right: 20px solid transparent;border-bottom: 20px solid green;left: 390px;top: 135px;
}
.tree:before {content:'';border-left: 40px solid transparent;border-right: 40px solid transparent;border-bottom: 40px solid green;left: -40px;top: 15px;
}
.tree:after {content:'';border-left: 60px solid transparent;border-right: 60px solid transparent;border-bottom: 60px solid green;left: -60px;top: 40px;
}
/* tree, bottom side */
.tree_bot {border-left: 80px solid transparent;border-right: 80px solid transparent;border-bottom: 80px solid green;left: 330px;top: 210px;
}
.tree_bot:before {content:'';border-left: 100px solid transparent;border-right: 100px solid transparent;border-bottom: 100px solid green;left: -100px;top: 40px;
}
.tree_bot:after {content:'';border-left: 120px solid transparent;border-right: 120px solid transparent;border-bottom: 120px solid green;left: -120px;top: 80px;
}
/* style the balls */
.ball {height: 40px;left: 390px;position: absolute;top: 345px;width: 40px;border-radius: 40px;-moz-border-radius: 40px;-webkit-border-radius: 40px;box-shadow: 0 0 5px #777;-moz-box-shadow: 0 0 5px #777;-webkit-box-shadow: 0 0 5px #777;
}
.red {background-color: #c8171f;background-image: -webkit-radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);background-image: -moz-radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);background-image: -o-radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);background-image: radial-gradient(50% 50%, circle, #f9d0be, #c8171f 70%);left: 340px;top: 325px;
}
.blue {background-color: #00a1ee;background-image: -webkit-radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);background-image: -moz-radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);background-image: -o-radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);background-image: radial-gradient(50% 50%, circle, #cde6f9, #00a1ee 70%);
}
.green {background-color: #4d8d00;background-image: -webkit-radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);background-image: -moz-radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);background-image: -o-radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);background-image: radial-gradient(50% 50%, circle, #d1e5b2, #4d8d00 70%);left: 440px;top: 325px;
}
.rsmall, .gsmall, .bsmall {height: 25px;width: 25px;
}
.rsmall {left: 440px;top: 255px;
}
.bsmall {left: 350px;top: 255px;
}
.gsmall {left: 395px;top: 275px;
}
/* style the falling snow */
.fall_snow {background-image: url('../images/snow1.png'), url('../images/snow2.png'), url('../images/snow3.png');height: 100%;left: 0;position: absolute;top: 0;width: 100%;-webkit-animation: snow 10s linear infinite;-moz-animation: snow 10s linear infinite;-ms-animation: snow 10s linear infinite;animation: snow 10s linear infinite;
}
@keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 500px 1000px, 200px 400px, -100px 300px;}
}
@-moz-keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 400px 1000px, 200px 400px, 100px 300px;}
}
@-webkit-keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 500px 1000px, 200px 400px, -100px 300px;}
}
@-ms-keyframes snow {0% {background-position: 0px 0px, 0px 0px, 0px 0px;}50% {background-position: 500px 500px, 100px 200px, -100px 150px;}100% {background-position: 500px 1000px, 200px 400px, -100px 300px;}
}
现场演示
下载结果
结论 (Conclusion)
Today we have made great Christmas tree with snow with using pseudo-elements like :before and :after. Just one little problem – IE browsers. Even if IE8 has support these pseudo-elements, it totally lacks CSS3 support, so our result will looks not so good. I wish you a Merry Christmas and Happy Holidays!
今天，我们使用了：before和：after这样的伪元素，用雪制作了精美的圣诞树。 只是一个小问题-IE浏览器。 即使IE8支持这些伪元素，它也完全缺少CSS3支持，因此我们的结果看起来不太好。 祝您圣诞快乐，节日快乐！
翻译自: https://www.script-tutorials.com/css3-christmas-tree-with-snow/
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