实现效果

<template>
     <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>
</template>

<script setup>
import { ref, onMounted } from 'vue'

</script>

<style scoped> 
 
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%);
    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;
    }
}
</style>

代码参考了博主👇https://blog.csdn.net/m0_61243965/article/details/125268823?ops_request_misc=%257B%2522request%255Fid%2522%253A%25221e59fc7b339d1ef019ffcebe19edd376%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fcommercial.%2522%257D&request_id=1e59fc7b339d1ef019ffcebe19edd376&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~insert_commercial~default-3-125268823-null-null.142^v102^pc_search_result_base2&utm_term=%E5%89%8D%E7%AB%AF%E5%BF%85%E5%AD%A6%E6%8A%80%E6%9C%AF&spm=1018.2226.3001.4187