效果图
今天给大家带来的是CSS3动画天气图标代码，简单实用好看！
CSS源码：
html { box-sizing: border-box; }
html *,
html *:before,
html *:after { box-sizing: inherit; }
body {
max-width: 42em;
padding: 2em;
margin: 0 auto;
color: #161616;
font-family: 'Roboto', sans-serif;
text-align: center;
background-color: currentColor;
}
h1 {
margin-bottom: 1.375em;
color: #fff;
font-weight: 100;
font-size: 2em;
text-transform: uppercase;
}
p,
a {
color: rgba(255,255,255,0.3);
font-size: small;
}
p { margin: 1.375rem 0; }
.icon {
position: relative;
display: inline-block;
width: 12em;
height: 10em;
font-size: 1em; /* control icon size here */
}
.cloud {
position: absolute;
z-index: 1;
top: 50%;
left: 50%;
width: 3.6875em;
height: 3.6875em;
margin: -1.84375em;
background: currentColor;
border-radius: 50%;
box-shadow:
-2.1875em 0.6875em 0 -0.6875em,
2.0625em 0.9375em 0 -0.9375em,
0 0 0 0.375em #fff,
-2.1875em 0.6875em 0 -0.3125em #fff,
2.0625em 0.9375em 0 -0.5625em #fff;
}
.cloud:after {
content: '';
position: absolute;
bottom: 0;
left: -0.5em;
display: block;
width: 4.5625em;
height: 1em;
background: currentColor;
box-shadow: 0 0.4375em 0 -0.0625em #fff;
}
.cloud:nth-child(2) {
z-index: 0;
background: #fff;
box-shadow:
-2.1875em 0.6875em 0 -0.6875em #fff,
2.0625em 0.9375em 0 -0.9375em #fff,
0 0 0 0.375em #fff,
-2.1875em 0.6875em 0 -0.3125em #fff,
2.0625em 0.9375em 0 -0.5625em #fff;
opacity: 0.3;
transform: scale(0.5) translate(6em, -3em);
animation: cloud 4s linear infinite;
}
.cloud:nth-child(2):after { background: #fff; }
.sun {
position: absolute;
top: 50%;
left: 50%;
width: 2.5em;
height: 2.5em;
margin: -1.25em;
background: currentColor;
border-radius: 50%;
box-shadow: 0 0 0 0.375em #fff;
animation: spin 12s infinite linear;
}
.rays {
position: absolute;
top: -2em;
left: 50%;
display: block;
width: 0.375em;
height: 1.125em;
margin-left: -0.1875em;
background: #fff;
border-radius: 0.25em;
box-shadow: 0 5.375em #fff;
}
.rays:before,
.rays:after {
content: '';
position: absolute;
top: 0em;
left: 0em;
display: block;
width: 0.375em;
height: 1.125em;
transform: rotate(60deg);
transform-origin: 50% 3.25em;
background: #fff;
border-radius: 0.25em;
box-shadow: 0 5.375em #fff;
}
.rays:before {
transform: rotate(120deg);
}
.cloud + .sun {
margin: -2em 1em;
}
.rain,
.lightning,
.snow {
position: absolute;
z-index: 2;
top: 50%;
left: 50%;
width: 3.75em;
height: 3.75em;
margin: 0.375em 0 0 -2em;
background: currentColor;
}
.rain:after {
content: '';
position: absolute;
z-index: 2;
top: 50%;
left: 50%;
width: 1.125em;
height: 1.125em;
margin: -1em 0 0 -0.25em;
background: #0cf;
border-radius: 100% 0 60% 50% / 60% 0 100% 50%;
box-shadow:
0.625em 0.875em 0 -0.125em rgba(255,255,255,0.2),
-0.875em 1.125em 0 -0.125em rgba(255,255,255,0.2),
-1.375em -0.125em 0 rgba(255,255,255,0.2);
transform: rotate(-28deg);
animation: rain 3s linear infinite;
}
.bolt {
position: absolute;
top: 50%;
left: 50%;
margin: -0.25em 0 0 -0.125em;
color: #fff;
opacity: 0.3;
animation: lightning 2s linear infinite;
}
.bolt:nth-child(2) {
width: 0.5em;
height: 0.25em;
margin: -1.75em 0 0 -1.875em;
transform: translate(2.5em, 2.25em);
opacity: 0.2;
animation: lightning 1.5s linear infinite;
}
.bolt:before,
.bolt:after {
content: '';
position: absolute;
z-index: 2;
top: 50%;
left: 50%;
margin: -1.625em 0 0 -1.0125em;
border-top: 1.25em solid transparent;
border-right: 0.75em solid;
border-bottom: 0.75em solid;
border-left: 0.5em solid transparent;
transform: skewX(-10deg);
}
.bolt:after {
margin: -0.25em 0 0 -0.25em;
border-top: 0.75em solid;
border-right: 0.5em solid transparent;
border-bottom: 1.25em solid transparent;
border-left: 0.75em solid;
transform: skewX(-10deg);
}
.bolt:nth-child(2):before {
margin: -0.75em 0 0 -0.5em;
border-top: 0.625em solid transparent;
border-right: 0.375em solid;
border-bottom: 0.375em solid;
border-left: 0.25em solid transparent;
}
.bolt:nth-child(2):after {
margin: -0.125em 0 0 -0.125em;
border-top: 0.375em solid;
border-right: 0.25em solid transparent;
border-bottom: 0.625em solid transparent;
border-left: 0.375em solid;
}
.flake:before,
.flake:after {
content: '¼4';
position: absolute;
top: 50%;
left: 50%;
margin: -1.025em 0 0 -1.0125em;
color: #fff;
list-height: 1em;
opacity: 0.2;
animation: spin 8s linear infinite reverse;
}
.flake:after {
margin: 0.125em 0 0 -1em;
font-size: 1.5em;
opacity: 0.4;
animation: spin 14s linear infinite;
}
.flake:nth-child(2):before {
margin: -0.5em 0 0 0.25em;
font-size: 1.25em;
opacity: 0.2;
animation: spin 10s linear infinite;
}
.flake:nth-child(2):after {
margin: 0.375em 0 0 0.125em;
font-size: 2em;
opacity: 0.4;
animation: spin 16s linear infinite reverse;
}
/* Animations */
@keyframes spin {
100% { transform: rotate(360deg); }
}
@keyframes cloud {
0% { opacity: 0; }
50% { opacity: 0.3; }
100% {
opacity: 0;
transform: scale(0.5) translate(-200%, -3em);
}
}
@keyframes rain {
0% {
background: #0cf;
box-shadow:
0.625em 0.875em 0 -0.125em rgba(255,255,255,0.2),
-0.875em 1.125em 0 -0.125em rgba(255,255,255,0.2),
-1.375em -0.125em 0 #0cf;
}
25% {
box-shadow:
0.625em 0.875em 0 -0.125em rgba(255,255,255,0.2),
-0.875em 1.125em 0 -0.125em #0cf,
-1.375em -0.125em 0 rgba(255,255,255,0.2);
}
50% {
background: rgba(255,255,255,0.3);
box-shadow:
0.625em 0.875em 0 -0.125em #0cf,
-0.875em 1.125em 0 -0.125em rgba(255,255,255,0.2),
-1.375em -0.125em 0 rgba(255,255,255,0.2);
}
100% {
box-shadow:
0.625em 0.875em 0 -0.125em rgba(255,255,255,0.2),
-0.875em 1.125em 0 -0.125em rgba(255,255,255,0.2),
-1.375em -0.125em 0 #0cf;
}
}
@keyframes lightning {
45% {
color: #fff;
background: #fff;
opacity: 0.2;
}
50% {
color: #0cf;
background: #0cf;
opacity: 1;
}
55% {
color: #fff;
background: #fff;
opacity: 0.2;
}
}
