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HTML 

              
                <div class="container">
  <div class="section">
    <div class="container-input">
      <input class="text-input" type="text" placeholder=" ">
      <div class="clip-outer clip">
        <div class="fill1 fill"></div>
      </div>
      <div class="clip-inner1 clip-inner clip">
        <div class="fill"></div>
      </div>
      <div class="clip-inner2 clip-inner clip">
        <div class="fill"></div>
      </div>
      <div class="clip-inner3 clip-inner clip">
        <div class="fill"></div>
      </div>
      <div class="clip-inner4 clip-inner clip">
        <div class="fill"></div>
      </div>
      <div class="clip-inner5 clip-inner clip">
        <div class="fill"></div>
      </div>
      <div class="clip-inner6 clip-inner clip">
        <div class="fill"></div>
      </div>
      <div class="clip-inner7 clip-inner clip">
        <div class="fill"></div>
      </div>
    </div>
    your name
  </div>
  <div class="section">
    <div class="container-input">
      <input class="text-input" type="text" placeholder=" ">
      <div class="clip-second-outer">
        <div class="fill-second">
          <div class="fill-second-zigzag1 fill-second-zigzag"></div>
          <div class="fill-second-rect1"></div>
        </div>
      </div>
      <div class="clip-second-inner">
        <div class="fill-second">
          <div class="fill-second-zigzag2 fill-second-zigzag"></div>
          <div class="fill-second-rect2"></div>
        </div>
      </div>
      <div class="clip-second-inner">
        <div class="fill-second">
          <div class="fill-second-zigzag3 fill-second-zigzag"></div>
          <div class="fill-second-rect3"></div>
        </div>
      </div>
    </div>
    your email
  </div>
</div>
!

CSS 

              
                @import url('https://fonts.googleapis.com/css?family=Open+Sans:600');
body {
  align-items: center;
  background: #abbaab;  /* fallback for old browsers */
  background: -webkit-linear-gradient(135deg, #ffffff, #abbaab);  /* Chrome 10-25, Safari 5.1-6 */
  background: linear-gradient(135deg, #ffffff, #abbaab); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
  display: flex;
  font-family: "Open Sans", sans-serif;
  font-size: 16px;
  height: 100vh;
  justify-content: center;
  margin: 0;
}
.container {
  display: flex;
  flex-direction: column;
}
.section:nth-child(2) {
  margin-top: 30px;
}
.container-input {
  position: relative;
}
.text-input {
  background: transparent;
  border: 0;
  border-bottom: 2px solid black;
  font-size: 20px;
  height: 50px;
  outline: none !important;
  width: 280px;
  padding-bottom: 4px;
  padding: 0 10px;
  position: relative;
  z-index: 1;
}
.clip {
  height: 100%;
  position: absolute;
  top: 0;
  width: 100%;
}
.clip-outer {
  clip-path: ellipse(100% 350% at 0% 470%);
  transition: clip-path 500ms 140ms;
}
.clip-inner {
  clip-path: ellipse(100% 350% at 0% 470%);
  height: calc(100% - 4px);
  left: 2px;
  pointer-events: none;
  top: 2px;
  width: calc(100% - 4px);
}
.clip-inner1 {
  background: #5c2983;
  transition: clip-path 500ms 120ms;
}
.clip-inner2 {
  background: #0076c5;
  transition: clip-path 500ms 100ms;
}
.clip-inner3 {
  background: #21b372;
  transition: clip-path 500ms 80ms;
}
.clip-inner4 {
  background: #fdde02;
  transition: clip-path 500ms 60ms;
}
.clip-inner5 {
  background: #f76700;
  transition: clip-path 500ms 40ms;
}
.clip-inner6 {
  background: #d30018;
  transition: clip-path 500ms 20ms;
}
.clip-inner7 {
  background: #fff;
  transition: clip-path 500ms;
}
.fill {
  height: 100%;
  width: 100%;
}
.fill1 {
  background: #000;
}
.text-input:focus ~ .clip-outer,.text-input:not(:placeholder-shown) ~ .clip-outer {
  clip-path: ellipse(100% 350% at 50% 250%);
  transition: clip-path 500ms;
}
.text-input:focus ~ .clip-inner,.text-input:not(:placeholder-shown) ~ .clip-inner {
  clip-path: ellipse(100% 350% at 50% 250%);
}
.text-input:focus ~ .clip-inner1,.text-input:not(:placeholder-shown) ~ .clip-inner1 {
  transition: clip-path 500ms 20ms;
}
.text-input:focus ~ .clip-inner2,.text-input:not(:placeholder-shown) ~ .clip-inner2 {
  transition: clip-path 500ms 40ms;
}
.text-input:focus ~ .clip-inner3,.text-input:not(:placeholder-shown) ~ .clip-inner3 {
  transition: clip-path 500ms 60ms;
}
.text-input:focus ~ .clip-inner4,.text-input:not(:placeholder-shown) ~ .clip-inner4 {
  transition: clip-path 500ms 80ms;
}
.text-input:focus ~ .clip-inner5,.text-input:not(:placeholder-shown) ~ .clip-inner5 {
  transition: clip-path 500ms 100ms;
}
.text-input:focus ~ .clip-inner6,.text-input:not(:placeholder-shown) ~ .clip-inner6 {
  transition: clip-path 500ms 120ms;
}
.text-input:focus ~ .clip-inner7,.text-input:not(:placeholder-shown) ~ .clip-inner7 {
  transition: clip-path 500ms 140ms;
}
.clip-second-outer {
  height: 100%;
  left: 0;
  overflow: hidden;
  position: absolute;
  top: 0;
  width: 100%;
}
.clip-second-inner {
  height: calc(100% - 4px);
  left: 2px;
  overflow: hidden;
  position: absolute;
  top: 2px;
  width: calc(100% - 4px);
}
.fill-second {
  transform: translateY(41px);
  transition: transform 300ms;
}
.fill-second-zigzag {
  background-repeat: repeat-x;
  bottom: 0px;
  left: 0px;
  width: 100%;
  height: 32px;
}
.fill-second-zigzag1 {
  background: linear-gradient(-45deg, #000 16px, transparent 0), linear-gradient(45deg, #000 16px, transparent 0);
  background-position: 5px 0;
  background-repeat: repeat-x;
  background-size: 32px 32px;
}
.fill-second-rect1 {
  background: #000;
  height: 50px;
  width: 100%;
}
.fill-second-zigzag2 {
  background: linear-gradient(-45deg, #FF1EAD 16px, transparent 0), linear-gradient(45deg, #FF1EAD 16px, transparent 0);
  background-position: 3px 3px;
  background-repeat: repeat-x;
  background-size: 32px 32px;
}
.fill-second-rect2 {
  background: #FF1EAD;
  height: 50px;
  width: 100%;
}
.fill-second-zigzag3 {
  background: linear-gradient(-45deg, #fff 16px, transparent 0), linear-gradient(45deg, #fff 16px, transparent 0);
  background-position: 3px 7px;
  background-repeat: repeat-x;
  background-size: 32px 32px;
}
.fill-second-rect3 {
  background: #fff;
  height: 50px;
  width: 100%;
}
.text-input:focus ~ .clip-second-outer .fill-second,.text-input:not(:placeholder-shown) ~ .clip-second-outer .fill-second {
  transform: translateY(-32px);
}
.text-input:focus ~ .clip-second-inner .fill-second,.text-input:not(:placeholder-shown) ~ .clip-second-inner .fill-second {
  transform: translateY(-32px);
}
!

JS
!
999px

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