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圓波擴散動畫效果,就是一個圓由中心向四周循環(huán)擴散的動畫效果。圓波擴散動畫效果應用非常廣泛,例如可以用來表示某一個位置的狀態(tài)信息,在網(wǎng)頁設計中,常常被用來作為登錄或切換頁面時的等待狀態(tài)。如下圖所示:
【css3動畫】圓波擴散效果
本文將使用純CSS3實現(xiàn)上圖動畫效果。
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>css3動畫圓波擴散效果</title>
<style>
@keyframes warn {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.3;
}
75% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.5;
}
100% {
transform: scale(1);
-webkit-transform: scale(1);
opacity: 0.0;
}
}
@keyframes warn1 {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.3;
}
75% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.5;
}
100% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.0;
}
}
.container {
position: relative;
width: 120px;
height: 120px;
left: 10px;
top: 10px;
}
/* 保持大小不變的小圓點 */
.dot {
position: absolute;
width: 7px;
height: 7px;
left: 134px;
top: 134px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border: 1px solid #33ccff;
border-radius: 50%;
background-color:#33ccff; /* 實心圓 ,如果沒有這個就是一個小圓圈 */
z-index: 2;
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第一個圓 */
.pulse {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn 2s ease-out;
-moz-animation: warn 2s ease-out;
animation: warn 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
box-shadow: 1px 1px 30px #3399ff; /* 陰影效果 */
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第二個圓 */
.pulse1 {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn1 2s ease-out;
-moz-animation: warn1 2s ease-out;
animation: warn1 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
box-shadow: 1px 1px 30px #3399ff; /* 陰影效果 */
}
</style>
</head>
<body>
<div class="container">
<div class="dot"></div>
<div class="pulse"></div>
<div class="pulse1"></div>
</div>
</body>
</html>
上述代碼簡要介紹:
1、中心是一個實心圓, .dot 類里加了背景屬性:background-color:#33ccff; ,如果沒有背景顏色,則為一個小圓圈。
2、使用了兩個圓來先后循環(huán)擴散,形成“波”的效果。兩個圓的類分別是:.pulse 和 .pulse1 。
3、擴散圓加了陰影,“波”效果更好。實現(xiàn)方法是在 .pulse 和 .pulse1 的類里使用屬性:box-shadow: 1px 1px 30px #3399ff;
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>css3動畫圓波擴散效果</title>
<style>
@keyframes warn {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.3;
}
75% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.5;
}
100% {
transform: scale(1);
-webkit-transform: scale(1);
opacity: 0.0;
}
}
@keyframes warn1 {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.3;
}
75% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.5;
}
100% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.0;
}
}
.container {
position: relative;
width: 120px;
height: 120px;
left: 10px;
top: 10px;
}
/* 保持大小不變的小圓點 */
.dot {
position: absolute;
width: 7px;
height: 7px;
left: 134px;
top: 134px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border: 1px solid #33ccff;
border-radius: 50%;
background-color:#33ccff; /* 實心圓 ,如果沒有這個就是一個小圓圈 */
z-index: 2;
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第一個圓 */
.pulse {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn 2s ease-out;
-moz-animation: warn 2s ease-out;
animation: warn 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第二個圓 */
.pulse1 {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn1 2s ease-out;
-moz-animation: warn1 2s ease-out;
animation: warn1 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
}
</style>
</head>
<body>
<div class="container">
<div class="dot"></div>
<div class="pulse"></div>
<div class="pulse1"></div>
</div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>css3動畫圓波擴散效果</title>
<style>
@keyframes warn {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.3;
}
75% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.5;
}
100% {
transform: scale(1);
-webkit-transform: scale(1);
opacity: 0.0;
}
}
@keyframes warn1 {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.3;
}
75% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.5;
}
100% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.0;
}
}
.container {
position: relative;
width: 120px;
height: 120px;
left: 10px;
top: 10px;
}
/* 保持大小不變的小圓圈 */
.dot {
position: absolute;
width: 7px;
height: 7px;
left: 134px;
top: 134px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border: 1px solid #33ccff;
border-radius: 50%;
z-index: 2;
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第一個圓 */
.pulse {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn 2s ease-out;
-moz-animation: warn 2s ease-out;
animation: warn 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
box-shadow: 1px 1px 30px #3399ff; /* 陰影效果 */
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第二個圓 */
.pulse1 {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn1 2s ease-out;
-moz-animation: warn1 2s ease-out;
animation: warn1 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
box-shadow: 1px 1px 30px #3399ff; /* 陰影效果 */
}
</style>
</head>
<body>
<div class="container">
<div class="dot"></div>
<div class="pulse"></div>
<div class="pulse1"></div>
</div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>css3動畫圓波擴散效果</title>
<style>
@keyframes warn {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.3;
}
75% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.5;
}
100% {
transform: scale(1);
-webkit-transform: scale(1);
opacity: 0.0;
}
}
@keyframes warn1 {
0% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.0;
}
25% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.1;
}
50% {
transform: scale(0.3);
-webkit-transform: scale(0.3);
opacity: 0.3;
}
75% {
transform: scale(0.5);
-webkit-transform: scale(0.5);
opacity: 0.5;
}
100% {
transform: scale(0.8);
-webkit-transform: scale(0.8);
opacity: 0.0;
}
}
.container {
position: relative;
width: 120px;
height: 120px;
left: 10px;
top: 10px;
}
/* 保持大小不變的小圓圈 */
.dot {
position: absolute;
width: 7px;
height: 7px;
left: 134px;
top: 134px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border: 1px solid #33ccff;
border-radius: 50%;
z-index: 2;
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第一個圓 */
.pulse {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn 2s ease-out;
-moz-animation: warn 2s ease-out;
animation: warn 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
}
/* 產(chǎn)生動畫(向外擴散變大)的圓圈 第二個圓 */
.pulse1 {
position: absolute;
width: 35px;
height: 35px;
left: 120px;
top: 120px;
border: 1px solid #3399ff;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
z-index: 1;
opacity: 0;
-webkit-animation: warn1 2s ease-out;
-moz-animation: warn1 2s ease-out;
animation: warn1 2s ease-out;
-webkit-animation-iteration-count: infinite;
-moz-animation-iteration-count: infinite;
animation-iteration-count: infinite;
}
</style>
</head>
<body>
<div class="container">
<div class="dot"></div>
<div class="pulse"></div>
<div class="pulse1"></div>
</div>
</body>
</html>