这是使用 SVG 和 CSS 动画制作的波浪效果,上半部分是蓝色(可修改成其他颜色)渐变的背景颜色,下半部分就是波浪,有四条波浪在不停的来回起伏,非常逼真。该波浪效果可用于大部分页面的底部,使页面增加一点活泼的气息。
1.Html构建
代码如下(示例):
<div class=\”inner_header\”> 填充蓝色(可修改成其他颜色)渐变的背景颜色
<div class=\”waves\”>这部分就是波浪的svg,有四条波浪在不停的来回起伏,效果非常逼真。
<div class=\”header\”>
<div class=\”inner-header flex\”>
<h1>简单的 CSS3 波浪效果</h1>
</div>
<div>
<svg class=\”waves\” xmlns=\”http://www.w3.org/2000/svg\” xmlns:xlink=\”http://www.w3.org/1999/xlink\”
viewBox=\”0 24 150 28\” preserveAspectRatio=\”none\” shape-rendering=\”auto\”>
<defs>
<path id=\”gentle-wave\”
d=\”M-160 44c30 0 58-18 88-18s 58 18 88 18 58-18 88-18 58 18 88 18 v44h-352z\” />
</defs>
<g class=\”parallax\”>
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”0\” fill=\”rgba(255,255,255,0.7\” />
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”3\” fill=\”rgba(255,255,255,0.5)\” />
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”5\” fill=\”rgba(255,255,255,0.3)\” />
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”7\” fill=\”#fff\” />
</g>
</svg>
</div>
</div>
2.CSS编写
代码如下(示例):
这里通过CSS3的animation动画属性来控制四条线条在不停的来回起伏,形成波浪效果
.header {
position: relative;
text-align: center;
background: linear-gradient(60deg, rgba(84, 58, 183, 1) 0%, rgba(0, 172, 193, 1) 100%);
/* background: #FFAFBD;
background: -webkit-linear-gradient(to right, #ffc3a0, #FFAFBD);
background: linear-gradient(to right, #ffc3a0, #FFAFBD);
*/
color: white;
}
.inner-header {
height: 65vh;
width: 100%;
margin: 0;
padding: 0;
}
.waves {
position: relative;
width: 100%;
height: 15vh;
margin-bottom: -7px; /*Fix for safari gap*/
min-height: 100px;
max-height: 150px;
}
.content {
position: relative;
height: 20vh;
text-align: center;
background-color: white;
}
.content a {
margin: 0 5px;
font-size: 12px;
color: #333;
}
.content a:hover {
color: #000;
}
/* Animation */
.parallax > use {
animation: move-forever 25s cubic-bezier(0.55, 0.5, 0.45, 0.5) infinite;
}
.parallax > use:nth-child(1) {
animation-delay: -2s;
animation-duration: 7s;
}
.parallax > use:nth-child(2) {
animation-delay: -3s;
animation-duration: 10s;
}
.parallax > use:nth-child(3) {
animation-delay: -4s;
animation-duration: 13s;
}
.parallax > use:nth-child(4) {
animation-delay: -5s;
animation-duration: 20s;
}
@keyframes move-forever {
0% {
transform: translate3d(-90px, 0, 0);
}
100% {
transform: translate3d(85px, 0, 0);
}
}
/*Shrinking for mobile*/
@media (max-width: 768px) {
.waves {
height: 40px;
min-height: 40px;
}
.content {
height: 30vh;
}
h1 {
font-size: 24px;
}
}
3.完整代码
index.html文件
<!DOCTYPE html>
<html lang=\”zh-CN\”>
<head>
<meta charset=\”utf-8\” />
<title>简单的CSS3波浪效果演示_dowebok</title>
<link rel=\”stylesheet\” href=\”style.css\” />
</head>
<body>
<div class=\”header\”>
<div class=\”inner-header flex\”>
<h1>简单的 CSS3 波浪效果</h1>
</div>
<div>
<svg class=\”waves\” xmlns=\”http://www.w3.org/2000/svg\” xmlns:xlink=\”http://www.w3.org/1999/xlink\”
viewBox=\”0 24 150 28\” preserveAspectRatio=\”none\” shape-rendering=\”auto\”>
<defs>
<path id=\”gentle-wave\”
d=\”M-160 44c30 0 58-18 88-18s 58 18 88 18 58-18 88-18 58 18 88 18 v44h-352z\” />
</defs>
<g class=\”parallax\”>
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”0\” fill=\”rgba(255,255,255,0.7\” />
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”3\” fill=\”rgba(255,255,255,0.5)\” />
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”5\” fill=\”rgba(255,255,255,0.3)\” />
<use xlink:href=\”#gentle-wave\” x=\”48\” y=\”7\” fill=\”#fff\” />
</g>
</svg>
</div>
</div>
</body>
</html>
style.css文件
body {
margin: 0;
}
h1 {
font-family: \’Lato\’, sans-serif;
font-weight: 300;
letter-spacing: 2px;
font-size: 48px;
}
p {
font-family: \’Lato\’, sans-serif;
letter-spacing: 1px;
font-size: 14px;
color: #333333;
}
.header {
position: relative;
text-align: center;
background: linear-gradient(60deg, rgba(84, 58, 183, 1) 0%, rgba(0, 172, 193, 1) 100%);
/* background: #FFAFBD;
background: -webkit-linear-gradient(to right, #ffc3a0, #FFAFBD);
background: linear-gradient(to right, #ffc3a0, #FFAFBD);
*/
color: white;
}
.logo {
width: 50px;
fill: white;
padding-right: 15px;
display: inline-block;
vertical-align: middle;
}
.inner-header {
height: 65vh;
width: 100%;
margin: 0;
padding: 0;
}
.flex {
/*Flexbox for containers*/
display: flex;
justify-content: center;
align-items: center;
text-align: center;
}
.waves {
position: relative;
width: 100%;
height: 15vh;
margin-bottom: -7px; /*Fix for safari gap*/
min-height: 100px;
max-height: 150px;
}
.content {
position: relative;
height: 20vh;
text-align: center;
background-color: white;
}
.content a {
margin: 0 5px;
font-size: 12px;
color: #333;
}
.content a:hover {
color: #000;
}
/* Animation */
.parallax > use {
animation: move-forever 25s cubic-bezier(0.55, 0.5, 0.45, 0.5) infinite;
}
.parallax > use:nth-child(1) {
animation-delay: -2s;
animation-duration: 7s;
}
.parallax > use:nth-child(2) {
animation-delay: -3s;
animation-duration: 10s;
}
.parallax > use:nth-child(3) {
animation-delay: -4s;
animation-duration: 13s;
}
.parallax > use:nth-child(4) {
animation-delay: -5s;
animation-duration: 20s;
}
@keyframes move-forever {
0% {
transform: translate3d(-90px, 0, 0);
}
100% {
transform: translate3d(85px, 0, 0);
}
}
/*Shrinking for mobile*/
@media (max-width: 768px) {
.waves {
height: 40px;
min-height: 40px;
}
.content {
height: 30vh;
}
h1 {
font-size: 24px;
}
}
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