全屏菜单和SVG动画

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html

css

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html

<div class="container">
  <div class="menu-container" id="toggle">
  <a href="#" class="menu" ><i class="fa fa-bars" aria-hidden="true"></i></a>
  </div>
  <div class="title-container"><h1><span>Full-Width Menu</span><br />& SVG Weirdness</h1>
    <div class="circle"></div>
</div>

</div>
  <div class="overlay" id="overlay">
  <nav class="overlay-menu">
    <ul>
      <li ><a href="#">Home</a></li>
      <li><a href="#">Tour</a></li>
      <li><a href="#">Features</a></li>
      <li><a href="#">Contact</a></li>
    </ul>
  </nav>
</div>

css

@import url(https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.css);
@import url("https://fonts.googleapis.com/css?family=Titan+One");
body {
  background: linear-gradient(to top, #7b00e0, #ff006a);
  margin: 0;
  height: 100%;
  overflow: hidden;
}

.container {
  width: 100%;
  height: 100vh;
  margin: 0 auto;
  overflow: hidden;
}

.menu-container {
  background-color: #ffc901;
  border-radius: 100%;
  color: white;
  cursor: pointer;
  position: absolute;
  width: 300px;
  height: 300px;
  left: -120px;
  top: -120px;
  transition: all 0.3s;
}
.menu-container.full-menu {
  border-radius: 0;
  padding: 0 !important;
  position: aboslute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  transition: all 0.3s;
}

.full-menu .menu {
  top: 40px;
  left: 40px;
}

.menu {
  color: white;
  font-size: 3.5em;
  position: absolute;
  top: 160px;
  left: 160px;
  z-index: 100;
  transition: all 0.3s;
}
.menu i {
  opacity: 0.7;
  transform: scale(1);
  transition: all 0.3s;
}
.menu i:hover {
  opacity: 1;
  transform: scale(1.2);
  transition: all 0.3s;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
}
.overlay.open {
  opacity: .9;
  visibility: visible;
  height: 100%;
}
.overlay.open li {
  animation: fadeInRight .5s ease forwards;
  animation-delay: .35s;
}
.overlay.open li:nth-of-type(2) {
  animation-delay: .4s;
}
.overlay.open li:nth-of-type(3) {
  animation-delay: .45s;
}
.overlay.open li:nth-of-type(4) {
  animation-delay: .50s;
}
.overlay nav {
  font-size: 3.2em;
  font-family: "Titan One", san-serif;
  position: relative;
  height: 70%;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 400;
  text-align: center;
}
.overlay ul {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  display: inline-block;
  position: relative;
  height: 100%;
}
.overlay ul li {
  display: block;
  height: 25%;
  height: calc(100% / 4);
  min-height: 50px;
  position: relative;
  opacity: 0;
}
.overlay ul li a {
  display: block;
  position: relative;
  color: #fff;
  text-decoration: none;
  overflow: hidden;
  opacity: 0.7;
  transform: scale(1);
  transition: all 0.3s;
}
.overlay ul li a:hover, .overlay ul li a:focus, .overlay ul li a:active {
  opacity: 1;
  transform: scale(1.2);
  transition: all 0.3s;
}

@keyframes fadeInRight {
  0% {
    opacity: 0;
    left: 20%;
  }
  100% {
    opacity: 1;
    left: 0;
  }
}
h1 {
  font-size: 5em;
  font-family: "Titan One", san-serif;
  background-color: rgba(255, 0, 106, 0.4);
  border-radius: 100%;
  box-shadow: 0 0 2em 1em rgba(255, 0, 106, 0.4);
  color: white;
  margin: 30vh auto;
  position: relative;
  text-align: center;
  text-shadow: 0 8px 0 rgba(123, 0, 224, 0.4);
  transform: rotate(-12deg);
  width: 800px;
  height: auto;
  z-index: -1;
}
h1 span {
  color: #ffc901;
}

.blob {
  animation: blobby 4s infinite;
}

.blob2 {
  animation: blobby2 6s infinite;
}

@keyframes blobby {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes blobby2 {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.18);
  }
  100% {
    transform: scale(1);
  }
}
svg {
  position: absolute;
  top: 0;
}

#svg-right {
  display: block;
  fill: #7b00e0;
  opacity: 0.5;
  right: 0;
  width: 60%;
  z-index: -10;
}

#svg-left {
  fill: #ff006a;
  margin: 0;
  width: 60%;
  z-index: -10;
}

@media all and (max-width: 980px) {
  h1 {
    font-size: 3em;
    font-family: "Titan One", san-serif;
  }
}
@media all and (max-width: 480px) {
  h1 {
    font-size: 2em;
    font-family: "Titan One", san-serif;
  }
}

JavaScript

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