Simple CSS Waves | Mobile & Full width

index.html

<div class="header">

<!--Content before waves-->
<div class="inner-header flex">

<form class="login">
  <img src="https://tscencompass.com/wp-content/uploads/tsc-hc-encompass.png">
  <input type="text" placeholder="Username">
  <input type="password" placeholder="Password">
  <button>Login</button>
</form>
</div>

<!--Waves Container-->
<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>
<!--Waves end-->

</div>
<!--Header ends-->

<!--Content starts-->
<div class="content flex">
  <p>TSC | Encompass</p>
</div>
<!--Content ends-->

simple-css-waves-mobile-full-width.markdown

Simple CSS Waves | Mobile & Full width

Lightweight animation between header & content. Easy to customize and apply into any website! Works with all devices and screen sizes.

A Pen by crawc on CodePen.

License.

style.css

@import url(//fonts.googleapis.com/css?family=Lato:300:400);

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%);
  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 {
  z-index: 90;
  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;
}

/* Animation */

.parallax > use {
  animation: move-forever 25s cubic-bezier(.55,.5,.45,.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;
  }
}


/*
login css
*/

body {
  /*font-family: "Asap", sans-serif;*/
    font-family: 'Lato', sans-serif;

}

.login {
  z-index: 100;
  overflow: hidden;
  background-color: rgb(255, 255, 255, .2);
  padding: 40px 30px 30px 30px;
  border-radius: 10px;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 400px;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  -webkit-transition: -webkit-transform 300ms, box-shadow 300ms;
  -moz-transition: -moz-transform 300ms, box-shadow 300ms;
  transition: transform 300ms, box-shadow 300ms;
  box-shadow: 5px 10px 10px rgba(2, 128, 144, 0.2);
}

.login > input {
  font-family: 'Lato', sans-serif;
  display: block;
  border-radius: 5px;
  font-size: 16px;
  background: rgb(255, 255, 255, .4);
  width: 100%;
  border: 0;
  padding: 10px 10px;
  margin: 15px -10px;
}
.login > button {
  font-family: 'Lato', sans-serif;
  cursor: pointer;
  color: #fff;
  font-size: 16px;
  text-transform: uppercase;
  width: 80px;
  border: 0;
  padding: 10px 0;
  margin-top: 10px;
  margin-left: -5px;
  border-radius: 5px;
  background-color: #333366;
  -webkit-transition: background-color 300ms;
  -moz-transition: background-color 300ms;
  transition: background-color 300ms;
}
.login > button:hover {
  background-color: #9A3134;
}

img {
    max-width:100%;
    max-height:100%;
    vertical-align: middle;
}