学习CSS3,模拟春雪漫天飘的动画效果
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清明时节雨纷纷,但有些地方却下起了大雪,今天我们就用所学的CSS3知识,模拟一下夜晚漫天飘雪的场景吧。
目录
1. 实现思路
- DIV布局的使用
- 整体背景radial-gradient属性的使用
- 夜空rotate属性的使用
- 雪花radial-gradient属性的使用
- 雪花移动动画animation属性的使用
- 雪花移动过程中translate3d属性的使用
2. 部分html代码
因为雪花的元素是相同的,只是移动的起点,移动过程,移动的终点不同,所以HTML元素大致相同,这里我们就不把所有的元素都粘贴过来了,稍后会粘贴出所有源代码,你可以拿到源代码放到自己的网页里,即可看到漫天飘雪的场景啦。
<div class="container">
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
......
<!-- 此处重复此处越多,效果越好 -->
</div>
3. 夜空的背景
夜空为了绚烂一些,肯定不是能是纯黑色,需要做一定的过渡效果,雪花飘落才会更完美,这里用到了background-image: radial-gradient 等CSS属性
body
background-image: radial-gradient(#021027, #000000);
.container
width: 100%;
height: 100%;
overflow: hidden;
transform: rotate(180deg);
4. 雪花的样式
雪花虽然HTML元素相同,但表现形式却不同。他有自己的大小,明暗,移动轨迹,等等,越随机,才能越表现的真实而完美
.circle-container .circle
width: 100%;
height: 100%;
border-radius: 50%;
mix-blend-mode: screen;
background-image: radial-gradient(#99ffff, #99ffff 10%, rgba(153, 255, 255, 0) 56%);
-webkit-animation: fadein-frames 200ms infinite, scale-frames 2s infinite;
animation: fadein-frames 200ms infinite, scale-frames 2s infinite;
@-webkit-keyframes scale-frames
0%
-webkit-transform: scale3d(0.4, 0.4, 1);
transform: scale3d(0.4, 0.4, 1);
50%
-webkit-transform: scale3d(2.2, 2.2, 1);
transform: scale3d(2.2, 2.2, 1);
100%
-webkit-transform: scale3d(0.4, 0.4, 1);
transform: scale3d(0.4, 0.4, 1);
5. 粒子飞升效果
可能在第3步,大家看到了 transform: rotate(180deg); 的代码设置,这是做了另外的考虑。满天飞雪的场景,其实如果旋转屏幕,可以做为那种地面上有某种粒子,逐渐向上飞升的效果,也是非常棒的。喜欢的小伙伴可以试一下。
6. HTML完整源代码
下面把完整源代码放出来,需要的小伙伴可以直接COPY过去,放到自己网页上就可以看到满天飞雪的效果啦
<!DOCTYPE html>
<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>漫天飘雪</title>
<link rel="stylesheet" href="./style.css">
</head>
<body>
<div class="container">
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
<div class="circle-container">
<div class="circle"></div>
</div>
</div>
</body></html>
7. CSS3完整源代码
html,
body
width: 100%;
height: 100%;
padding:0;margin:0;
body
background-image: radial-gradient(#021027, #000000);
.container
width: 100%;
height: 100%;
overflow: hidden;
transform: rotate(180deg);
.circle-container
position: absolute;
-webkit-transform: translateY(-10vh);
transform: translateY(-10vh);
-webkit-animation-iteration-count: infinite;
animation-iteration-count: infinite;
-webkit-animation-timing-function: linear;
animation-timing-function: linear;
.circle-container .circle
width: 100%;
height: 100%;
border-radius: 50%;
mix-blend-mode: screen;
background-image: radial-gradient(#99ffff, #99ffff 10%, rgba(153, 255, 255, 0) 56%);
-webkit-animation: fadein-frames 200ms infinite, scale-frames 2s infinite;
animation: fadein-frames 200ms infinite, scale-frames 2s infinite;
@-webkit-keyframes scale-frames
0%
-webkit-transform: scale3d(0.4, 0.4, 1);
transform: scale3d(0.4, 0.4, 1);
50%
-webkit-transform: scale3d(2.2, 2.2, 1);
transform: scale3d(2.2, 2.2, 1);
100%
-webkit-transform: scale3d(0.4, 0.4, 1);
transform: scale3d(0.4, 0.4, 1);
@keyframes scale-frames
0%
-webkit-transform: scale3d(0.4, 0.4, 1);
transform: scale3d(0.4, 0.4, 1);
50%
-webkit-transform: scale3d(2.2, 2.2, 1);
transform: scale3d(2.2, 2.2, 1);
100%
-webkit-transform: scale3d(0.4, 0.4, 1);
transform: scale3d(0.4, 0.4, 1);
.circle-container:nth-child(1)
width: 10px;
height: 10px;
-webkit-animation-name: move-frames-1;
animation-name: move-frames-1;
-webkit-animation-duration: 8441ms;
animation-duration: 8441ms;
-webkit-animation-delay: 4544ms;
animation-delay: 4544ms;
@-webkit-keyframes move-frames-1
from
-webkit-transform: translate3d(50vw, 102vh, 0);
transform: translate3d(50vw, 102vh, 0);
to
-webkit-transform: translate3d(2vw, -117vh, 0);
transform: translate3d(2vw, -117vh, 0);
@keyframes move-frames-1
from
-webkit-transform: translate3d(50vw, 102vh, 0);
transform: translate3d(50vw, 102vh, 0);
to
-webkit-transform: translate3d(2vw, -117vh, 0);
transform: translate3d(2vw, -117vh, 0);
.circle-container:nth-child(1) .circle
-webkit-animation-delay: 3734ms;
animation-delay: 3734ms;
.circle-container:nth-child(2)
width: 10px;
height: 10px;
-webkit-animation-name: move-frames-2;
animation-name: move-frames-2;
-webkit-animation-duration: 9921ms;
animation-duration: 9921ms;
-webkit-animation-delay: 5982ms;
animation-delay: 5982ms;
@-webkit-keyframes move-frames-2
from
-webkit-transform: translate3d(89vw, 108vh, 0);
transform: translate3d(89vw, 108vh, 0);
to
-webkit-transform: translate3d(72vw, -123vh, 0);
transform: translate3d(72vw, -123vh, 0);
@keyframes move-frames-2
from
-webkit-transform: translate3d(89vw, 108vh, 0);
transform: translate3d(89vw, 108vh, 0);
to
-webkit-transform: translate3d(72vw, -123vh, 0);
transform: translate3d(72vw, -123vh, 0);
.circle-container:nth-child(2) .circle
-webkit-animation-delay: 2516ms;
animation-delay: 2516ms;
.circle-container:nth-child(3)
width: 3px;
height: 3px;
-webkit-animation-name: move-frames-3;
animation-name: move-frames-3;
-webkit-animation-duration: 10427ms;
animation-duration: 10427ms;
-webkit-animation-delay: 3649ms;
animation-delay: 3649ms;
@-webkit-keyframes move-frames-3
from
-webkit-transform: translate3d(85vw, 107vh, 0);
transform: translate3d(85vw, 107vh, 0);
to
-webkit-transform: translate3d(30vw, -133vh, 0);
transform: translate3d(30vw, -133vh, 0);
@keyframes move-frames-3
from
-webkit-transform: translate3d(85vw, 107vh, 0);
transform: translate3d(85vw, 107vh, 0);
to
-webkit-transform: translate3d(30vw, -133vh, 0);
transform: translate3d(30vw, -133vh, 0);
.circle-container:nth-child(3) .circle
-webkit-animation-delay: 731ms;
animation-delay: 731ms;
.circle-container:nth-child(4)
width: 6px;
height: 6px;
-webkit-animation-name: move-frames-4;
animation-name: move-frames-4;
-webkit-animation-duration: 10951ms;
animation-duration: 10951ms;
-webkit-animation-delay: 8909ms;
animation-delay: 8909ms;
@-webkit-keyframes move-frames-4
from
-webkit-transform: translate3d(50vw, 104vh, 0);
transform: translate3d(50vw, 104vh, 0);
to
-webkit-transform: translate3d(74vw, -122vh, 0);
transform: translate3d(74vw, -122vh, 0);
@keyframes move-frames-4
from
-webkit-transform: translate3d(50vw, 104vh, 0);
transform: translate3d(50vw, 104vh, 0);
to
-webkit-transform: translate3d(74vw, -122vh, 0);
transform: translate3d(74vw, -122vh, 0);
.circle-container:nth-child(4) .circle
-webkit-animation-delay: 2526ms;
animation-delay: 2526ms;
.circle-container:nth-child(5)
width: 5px;
height: 5px;
-webkit-animation-name: move-frames-5;
animation-name: move-frames-5;
-webkit-animation-duration: 7642ms;
animation-duration: 7642ms;
-webkit-animation-delay: 2502ms;
animation-delay: 2502ms;
@-webkit-keyframes move-frames-5
from
-webkit-transform: translate3d(9vw, 108vh, 0);
transform: translate3d(9vw, 108vh, 0);
to
-webkit-transform: translate3d(39vw, -126vh, 0);
transform: translate3d(39vw, -126vh, 0);
@keyframes move-frames-5
from
-webkit-transform: translate3d(9vw, 108vh, 0);
transform: translate3d(9vw, 108vh, 0);
to
-webkit-transform: translate3d(39vw, -126vh, 0);
transform: translate3d(39vw, -126vh, 0);
.circle-container:nth-child(5) .circle
-webkit-animation-delay: 2755ms;
animation-delay: 2755ms;
.circle-container:nth-child(6)
width: 6px;
height: 6px;
-webkit-animation-name: move-frames-6;
animation-name: move-frames-6;
-webkit-animation-duration: 8439ms;
animation-duration: 8439ms;
-webkit-animation-delay: 455ms;
animation-delay: 455ms;
@-webkit-keyframes move-frames-6
from
-webkit-transform: translate3d(29vw, 101vh, 0);
transform: translate3d(29vw, 101vh, 0);
to
-webkit-transform: translate3d(21vw, -109vh, 0);
transform: translate3d(21vw, -109vh, 0);
@keyframes move-frames-6
from
-webkit-transform: translate3d(29vw, 101vh, 0);
transform: translate3d(29vw, 101vh, 0);
to
-webkit-transform: translate3d(21vw, -109vh, 0);
transform: translate3d(21vw, -109vh, 0);
.circle-container:nth-child(6) .circle
-webkit-animation-delay: 3506ms;
animation-delay: 3506ms;
.circle-container:nth-child(7)
width: 8px;
height: 8px;
-webkit-animation-name: move-frames-7;
animation-name: move-frames-7;
-webkit-animation-duration: 7539ms;
animation-duration: 7539ms;
-webkit-animation-delay: 3595ms;
animation-delay: 3595ms;
@-webkit-keyframes move-frames-7
from
-webkit-transform: translate3d(11vw, 101vh, 0);
transform: translate3d(11vw, 101vh, 0);
to
-webkit-transform: translate3d(31vw, -125vh, 0);
transform: translate3d(31vw, -125vh, 0);
@keyframes move-frames-7
from
-webkit-transform: translate3d(11vw, 101vh, 0);
transform: translate3d(11vw, 101vh, 0);
to
-webkit-transform: translate3d(31vw, -125vh, 0);
transform: translate3d(31vw, -125vh, 0);
.circle-container:nth-child(7) .circle
-webkit-animation-delay: 749ms;
animation-delay: 749ms;
.circle-container:nth-child(8)
width: 4px;
height: 4px;
-webkit-animation-name: move-frames-8;
animation-name: move-frames-8;
-webkit-animation-duration: 7480ms;
animation-duration: 7480ms;
-webkit-animation-delay: 2680ms;
animation-delay: 2680ms;
@-webkit-keyframes move-frames-8
from
-webkit-transform: translate3d(15vw, 101vh, 0);
transform: translate3d(15vw, 101vh, 0);
to
-webkit-transform: translate3d(88vw, -111vh, 0);
transform: translate3d(88vw, -111vh, 0);
@keyframes move-frames-8
from
-webkit-transform: translate3d(15vw, 101vh, 0);
transform: translate3d(15vw, 101vh, 0);
to
-webkit-transform: translate3d(88vw, -111vh, 0);
transform: translate3d(88vw, -111vh, 0);
.circle-container:nth-child(8) .circle
-webkit-animation-delay: 1888ms;
animation-delay: 1888ms;
.circle-container:nth-child(9)
width: 2px;
height: 2px;
-webkit-animation-name: move-frames-9;
animation-name: move-frames-9;
-webkit-animation-duration: 9087ms;
animation-duration: 9087ms;
-webkit-animation-delay: 9461ms;
animation-delay: 9461ms;
@-webkit-keyframes move-frames-9
from
-webkit-transform: translate3d(100vw, 107vh, 0);
transform: translate3d(100vw, 107vh, 0);
to
-webkit-transform: translate3d(40vw, -130vh, 0);
transform: translate3d(40vw, -130vh, 0);
@keyframes move-frames-9
from
-webkit-transform: translate3d(100vw, 107vh, 0);
transform: translate3d(100vw, 107vh, 0);
to
-webkit-transform: translate3d(40vw, -130vh, 0);
transform: translate3d(40vw, -130vh, 0);
.circle-container:nth-child(9) .circle
-webkit-animation-delay: 1721ms;
animation-delay: 1721ms;
.circle-container:nth-child(10)
width: 8px;
height: 8px;
-webkit-animation-name: move-frames-10;
animation-name: move-frames-10;
-webkit-animation-duration: 9860ms;
animation-duration: 9860ms;
-webkit-animation-delay: 8969ms;
animation-delay: 8969ms;
@-webkit-keyframes move-frames-10
from
-webkit-transform: translate3d(74vw, 110vh, 0);
transform: translate3d(74vw, 110vh, 0);
to
-webkit-transform: translate3d(30vw, -127vh, 0);
transform: translate3d(30vw, -127vh, 0);
@keyframes move-frames-10
from
-webkit-transform: translate3d(74vw, 110vh, 0);
transform: translate3d(74vw, 110vh, 0);
to
-webkit-transform: translate3d(30vw, -127vh, 0);
transform: translate3d(30vw, -127vh, 0);
.circle-container:nth-child(10) .circle
-webkit-animation-delay: 1801ms;
animation-delay: 1801ms;
.circle-container:nth-child(11)
width: 1px;
height: 1px;
-webkit-animation-name: move-frames-11;
animation-name: move-frames-11;
-webkit-animation-duration: 9292ms;
animation-duration: 9292ms;
-webkit-animation-delay: 9812ms;
animation-delay: 9812ms;
8. 最后
最后呢,祝大家2023年心想事成
- 【手把手、从零到一】SpringBoot+SpringCloud+Vue前后端分离实战项目,专栏持续火热更新中。。。
- 主流技术,细节到位,前后端由两位【十年多】的高级架构师操刀
- 作为毕设项目、入门项目、或者准备进阶提升竞争力的小伙伴,可以【订阅本专栏】哦
- 前端部分 :https://blog.csdn.net/xingyu_qie/category_12222258.html
- 服务端部分 :https://blog.csdn.net/scm_2008/category_12236048.html
- 粉丝福利:订阅的粉丝可加微信,对文章的内容进行【一对一指导】!
使用强大的 CSS 滤镜实现安卓充电动画效果
用安卓手机的同学肯定不陌生,这个是安卓手机在充电的时候的效果。看到这个我就很好奇,使用 CSS 能做到吗?
经过一番尝试,发现使用 CSS 也是可以很好的模拟这种动画效果:
知识点
拆解一下知识点,最主要的其实是用到了 filter: contrast()
以及 filter: blur()
这两个滤镜,可以很好的实现这种融合效果。
单独将两个滤镜拿出来,它们的作用分别是:
filter: blur()
: 给图像设置高斯模糊效果。filter: contrast()
: 调整图像的对比度。
但是,当他们“合体”的时候,产生了奇妙的融合现象。
先来看一个简单的例子:
仔细看两圆相交的过程,在边与边接触的时候,会产生一种边界融合的效果,
通过对比度滤镜把高斯模糊的模糊边缘给干掉,利用高斯模糊实现融合效果。
颜色的变换
当然,这里也是可以加上颜色的变换,效果也很不错:
容易忽视的点
通过调节 filter: blur()
及 filter: contrast()
属性的值,动画效果其实会有很大程度的变化,好的效果需要不断的调试。
当然,经验在其中也是发挥了很重要的作用,说到底还是要多尝试。
如果还有什么疑问或者建议,可以多多交流,文中若有不正之处,万望告知。
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