css实现弧形头部效果-html代码-BFW代码库

css实现弧形头部效果

代码语言：html

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<title>Responsive Curved Header with SVG</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">
<style>
    @keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

.fadeInClass {
  animation: fadeIn 1s ease-out forwards;
}

.text-center {
  text-align: center;
}

.text-2 {
  font-size: 1.8rem;
}

.margin-bottom--3 {
  margin-bottom: 3rem;
}

.margin-y--5 {
  margin-top: 5rem;
  margin-bottom: 5rem;
}

.page-container {
  max-width: 100%;
  margin: 60px auto 0;
  background: white;
}

.content-container {
  width: 726px;
  margin: 0 auto;
}
@media (max-width: 726px) {
  .content-container {
    width: 100%;
    padding: 0 1rem;
  }
}

.navbar {
  width: 100%;
  height: 60px;
  box-shadow: 0px 3px 3px rgba(0, 0, 0, 0.11);
  position: fixed;
  top: 0;
  z-index: 1000;
  background: white;
}

.banner {
  height: 368px;
  overflow: hidden;
  position: relative;
}
@media (max-width: 726px) {
  .banner {
    height: 300px;
  }
}
@media (max-width: 400px) {
  .banner {
    height: 200px;
  }
}
.banner .banner_img-wrapper {
  position: relative;
  width: 100%;
  height: 99%;
  display: block;
}
.banner .banner_img-wrapper:after {
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  opacity: .7;
  content: "";
  width: 100%;
  height: 100%;
  background-image: linear-gradient(165deg, #00274C, #445339, #FFCB05);
}
.banner .banner_text {
  margin: -288px auto 0;
  max-width: 726px;
  position: relative;
  color: white;
  opacity: 0;
  transform: translateY(5px);
  animation: fadeIn 1s ease-out forwards;
}
@media (max-width: 726px) {
  .banner .banner_text {
    margin: -240px auto 0;
    padding: 0 1rem;
  }
}
@media (max-width: 400px) {
  .banner .banner_text {
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