前端小练习丨手把手教你用css3模拟春雪漫天飘的动画效果

云端源想IT培训 05-28 186

前言：

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- 2023.04.24 -

最近，西安迎来了降温+降雨+大风三连击，甚至还有的地方下起了大雪。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！

一、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

二、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，文章最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>

</div>

</div>

......

</div>

三、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);

}

四、雪花的样式

自然界的雪花，形状各不相同在空中飞舞时姿态也各不相同，为了使其展现的雪花飘舞更加真实，可以在HTML中用不同的表现形式来模拟。

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);

}

五、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。

六、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>

</head>

<body>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</div>

</body></html>

七、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;

}

今天的分享就到这里了，你学会了吗？快复制代码试一试吧！

我们下期再见！

END

文案编辑|云端学长

文案配图|云端学长

内容由：云端源想分享

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标签： #csstranslate动画

前端小练习丨手把手教你用css3模拟春雪漫天飘的动画效果

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