嗨,我的图片如下:
从左到右,从下到下,从左到右,都有一些动画。
图像尺寸
600 X 738
为,否,乡绅数量为5x5
。 我编写CSS来实现要求:
.cute_angry_steam_coming_out_of_face {
border-radius: 5px;
display: inline-block;
line-height: 52px;
padding: 2px 2px 8px;
position: relative;
text-align: center;
width: 120px;
height: 148px;
animation: cute_happy_smiling_face 0 2s;
animation-iteration-count: infinite;
background-image: url('https://i.stack.imgur.com/gQIqY.png');
background-repeat: no-repeat;
background-size: 960px 785px;
image-rendering: -webkit-optimize-contrast;
border: 1px solid red;
}
@keyframes cute_happy_smiling_face {
0% {
background-position: 0px 0px;
}
3% {
background-position: 120px 0px;
}
6% {
background-position: 240px 0px;
}
8% {
background-position: 360px 0px;
}
11% {
background-position: 480px 0px;
}
14% {
background-position: 600px 0px;
}
17% {
background-position: 0px 148px;
}
19% {
background-position: 120px 148px;
}
22% {
background-position: 240px 148px;
}
25% {
background-position: 360px 148px;
}
28% {
background-position: 480px 148px;
}
31% {
background-position: 600px 148px;
}
33% {
background-position: 0px 295px;
}
36% {
background-position: 120px 295px;
}
39% {
background-position: 240px 295px;
}
42% {
background-position: 360px 295px;
}
44% {
background-position: 480px 295px;
}
47% {
background-position: 600px 295px;
}
50% {
background-position: 0px 443px;
}
53% {
background-position: 120px 443px;
}
56% {
background-position: 240px 443px;
}
58% {
background-position: 360px 443px;
}
61% {
background-position: 480px 443px;
}
64% {
background-position: 600px 443px;
}
67% {
background-position: 0px 590px;
}
69% {
background-position: 120px 590px;
}
72% {
background-position: 240px 590px;
}
75% {
background-position: 360px 590px;
}
78% {
background-position: 480px 590px;
}
81% {
background-position: 600px 590px;
}
83% {
background-position: 0px 738px;
}
86% {
background-position: 120px 738px;
}
89% {
background-position: 240px 738px;
}
92% {
background-position: 360px 738px;
}
94% {
background-position: 480px 738px;
}
97% {
background-position: 600px 738px;
}
}
<div class="cute_angry_steam_coming_out_of_face"></div>
但是直到最后动画并不能流畅。我想让每张图片保持一秒钟,并且位置应该无限循环地尽可能快地切换到下一张。
最后,动画如下所示
答案 0 :(得分:1)
要使其变得更容易,您可以考虑使用CSS变量,诀窍是根据宽度高度对位置使用负值。
您有5行5列和22张图像,因此可以将动画分为22种状态(100/22 = 4.54
)。在每种状态下,我们在x轴上将变量从0
增大到4
,当到达4
时,我们将重置为0
,并在y轴上增大。< / p>
您还可以通过简单地更改CSS变量来轻松调整尺寸,因此您无需知道图像的宽度/高度,只需知道行数和列数
.cute_angry_steam_coming_out_of_face {
border-radius: 5px;
display: inline-block;
border: 1px solid red;
--w:120px;
--h:148px;
width: var(--w);
height: var(--h);
background-image: url('https://i.stack.imgur.com/gQIqY.png');
background-size: calc(5*var(--w)) calc(5*var(--h));
animation: cute_happy_smiling_face 3s infinite;
}
@keyframes cute_happy_smiling_face {
0%,4.54% {
background-position: calc(0*var(--w)) calc(0*var(--h));
}
4.55%,9.09% {
background-position: calc(-1*var(--w)) calc(0*var(--h));
}
9.10%,13.63% {
background-position: calc(-2*var(--w)) calc(0*var(--h));
}
13.64%,18.18% {
background-position: calc(-3*var(--w)) calc(0*var(--h));
}
18.19%,22.72% {
background-position: calc(-4*var(--w)) calc(0*var(--h));
}
22.73%,27.27% {
background-position: calc(0*var(--w)) calc(-1*var(--h));
}
27.28%,31.81% {
background-position: calc(-1*var(--w)) calc(-1*var(--h));
}
31.82%,36.36% {
background-position: calc(-2*var(--w)) calc(-1*var(--h));
}
36.37%,40.90% {
background-position: calc(-3*var(--w)) calc(-1*var(--h));
}
40.91%,45.45% {
background-position: calc(-4*var(--w)) calc(-1*var(--h));
}
45.46%,50% {
background-position: calc(0*var(--w)) calc(-2*var(--h));
}
50.01%,54.54% {
background-position: calc(-1*var(--w)) calc(-2*var(--h));
}
54.55%,59.09% {
background-position: calc(-2*var(--w)) calc(-2*var(--h));
}
59.10%,63.63% {
background-position: calc(-3*var(--w)) calc(-2*var(--h));
}
63.64%,68.18% {
background-position: calc(-4*var(--w)) calc(-2*var(--h));
}
68.19%,72.72% {
background-position: calc(0*var(--w)) calc(-3*var(--h));
}
72.73%,77.27% {
background-position: calc(-1*var(--w)) calc(-3*var(--h));
}
77.28%,81.81% {
background-position: calc(-2*var(--w)) calc(-3*var(--h));
}
81.82%,86.36% {
background-position: calc(-3*var(--w)) calc(-3*var(--h));
}
86.37%,90.9% {
background-position: calc(-4*var(--w)) calc(-3*var(--h));
}
90.91%,95.45% {
background-position: calc(0*var(--w)) calc(-4*var(--h));
}
95.46%,100% {
background-position: calc(-1*var(--w)) calc(-4*var(--h));
}
}
<div class="cute_angry_steam_coming_out_of_face"></div>
<div class="cute_angry_steam_coming_out_of_face" style="--w:100px;--h:120px"></div>
<div class="cute_angry_steam_coming_out_of_face" style="--w:50px;--h:80px"></div>
另一个引人入胜的想法(我推荐),其代码较少,是仅对每个位置进行动画处理并使用steps()
。这将使代码更容易。唯一的缺点是您将看到3个空插槽。如果您只有5x5的图片(25),而不仅仅是22张,则此方法是完美的。
.cute_angry_steam_coming_out_of_face {
border-radius: 5px;
display: inline-block;
border: 1px solid red;
--w:120px;
--h:148px;
width: var(--w);
height: var(--h);
background-image: url('https://i.stack.imgur.com/gQIqY.png');
background-size: calc(5*var(--w)) calc(5*var(--h));
animation-name: smiling_face-x, smiling_face-y;
animation-duration: 0.5s ,2.5s; /* 2.5 = 5 x 0.5 */
animation-timing-function:steps(5);
animation-iteration-count:infinite;
}
@keyframes smiling_face-x {
100% {
background-position-x: calc(-5*var(--w));
}
}
@keyframes smiling_face-y {
100% {
background-position-y: calc(-5*var(--h));
}
}
<div class="cute_angry_steam_coming_out_of_face"></div>
<div class="cute_angry_steam_coming_out_of_face" style="--w:100px;--h:120px"></div>
<div class="cute_angry_steam_coming_out_of_face" style="--w:50px;--h:80px"></div>
以下是一个更通用的代码,请考虑NxM
图片:
.cute_angry_steam_coming_out_of_face {
border-radius: 5px;
display: inline-block;
border: 1px solid red;
--w:120px;
--h:148px;
--n:3; /* number of rows */
--m:5; /* number of columns */
--d:2s; /*duration*/
width: var(--w);
height: var(--h);
background-image: url('https://i.stack.imgur.com/M2n58.png');
background-size: calc(var(--m)*var(--w)) calc(var(--n)*var(--h));
animation-name: smiling_face-x, smiling_face-y;
animation-duration: calc(var(--d)/var(--n)),var(--d);
animation-timing-function:steps(var(--m)),steps(var(--n));
animation-iteration-count:infinite;
}
@keyframes smiling_face-x {
100% {
background-position-x: calc(-1*var(--m)*var(--w));
}
}
@keyframes smiling_face-y {
100% {
background-position-y: calc(-1*var(--n)*var(--h));
}
}
<div class="cute_angry_steam_coming_out_of_face"></div>
<div class="cute_angry_steam_coming_out_of_face" style="--w:100px;--h:120px"></div>
<div class="cute_angry_steam_coming_out_of_face" style="--w:50px;--h:80px"></div>
答案 1 :(得分:0)
/*{"dim":[600,738], "n":[5, 5]}*/
.cute_angry_steam_coming_out_of_face {
border-radius: 5px;
display: inline-block;
line-height: 52px;
padding: 2px 2px 8px;
position: relative;
text-align: center;
width: 500px;
height: 500px;
animation: cute_happy_smiling_face 0 10s;
animation-iteration-count: infinite;
background-image: url('https://i.stack.imgur.com/gQIqY.png');
background-repeat: no-repeat;
background-size: 960px 785px;
image-rendering: -webkit-optimize-contrast;
border: 1px solid red;
background-size: cover;
background-position: center center;
}
@keyframes cute_happy_smiling_face {
0% {background-position:0px 0px;}
50% {background-position:0px 200px;}
75% {background-position:200px 200px;}
100% {background-position:300px 500px;}
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div class="cute_angry_steam_coming_out_of_face" ></div>
</body>
</html>
尝试一下,希望对您有所帮助。