Javascript Code: Hiding Search Box

It is very important to have a search box in your website. But it might consume some space. So why not to hide it under a button and make it visible when it is needed and the button is clicked? See the example below.
<!-- this script got from www.javascriptfreecode.com - Coded by: Krishna Eydat -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">
<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Varela+Round&amp;display=swap'>
<style>
.search {
  --background: #ffffff;
  --text-color: #414856;
  --primary-color: #4F29F0;
  --border-radius: 10px;
  --width: 190px;
  --height: 55px;
  background: var(--background);
  width: auto;
  height: var(--height);
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: 0 10px 30px rgba(65, 72, 86, 0.05);
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
}
.search input[type="text"] {
  position: relative;
  width: var(--height);
  height: var(--height);
  font: 400 16px 'Varela Round', sans-serif;
  color: var(--text-color);
  border: 0;
  box-sizing: border-box;
  outline: none;
  padding: 0 0 0 40px;
  -webkit-transition: width .6s ease;
  transition: width .6s ease;
  z-index: 10;
  opacity: 0;
  cursor: pointer;
}
.search input[type="text"]:focus {
  z-index: 0;
  opacity: 1;
  width: var(--width);
}
.search input[type="text"]:focus ~ .symbol::before {
  width: 0%;
}
.search input[type="text"]:focus ~ .symbol:after {
  -webkit-clip-path: inset(0% 0% 0% 100%);
          clip-path: inset(0% 0% 0% 100%);
  -webkit-transition: -webkit-clip-path .04s linear .105s;
  transition: -webkit-clip-path .04s linear .105s;
  transition: clip-path .04s linear .105s;
  transition: clip-path .04s linear .105s, -webkit-clip-path .04s linear .105s;
}
.search input[type="text"]:focus ~ .symbol .cloud {
  top: -30px;
  left: -30px;
  -webkit-transform: translate(0, 0);
          transform: translate(0, 0);
  -webkit-transition: all .6s ease;
  transition: all .6s ease;
}
.search input[type="text"]:focus ~ .symbol .lens {
  top: 20px;
  left: 15px;
  -webkit-transform: translate(0, 0);
          transform: translate(0, 0);
  fill: var(--primary-color);
  -webkit-transition: top .5s ease .1s, left .5s ease .1s, fill .3s ease;
  transition: top .5s ease .1s, left .5s ease .1s, fill .3s ease;
}
.search .symbol {
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  z-index: 1;
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
}
.search .symbol:before {
  content: "";
  position: absolute;
  right: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-color);
  z-index: -1;
  -webkit-transition: width .6s ease;
  transition: width .6s ease;
}
.search .symbol:after {
  content: "";
  position: absolute;
  top: 21px;
  left: 21px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  z-index: 1;
  -webkit-clip-path: inset(0% 0% 0% 0%);
          clip-path: inset(0% 0% 0% 0%);
  -webkit-transition: -webkit-clip-path .04s linear .225s;
  transition: -webkit-clip-path .04s linear .225s;
  transition: clip-path .04s linear .225s;
  transition: clip-path .04s linear .225s, -webkit-clip-path .04s linear .225s;
}
.search .symbol .cloud,
.search .symbol .lens {
  position: absolute;
  fill: #fff;
  stroke: none;
  top: 50%;
  left: 50%;
}
.search .symbol .cloud {
  width: 35px;
  height: 32px;
  -webkit-transform: translate(-50%, -60%);
          transform: translate(-50%, -60%);
  -webkit-transition: all .6s ease;
  transition: all .6s ease;
}
.search .symbol .lens {
  fill: #fff;
  width: 16px;
  height: 16px;
  z-index: 2;
  top: 24px;
  left: 24px;
  -webkit-transition: top .3s ease, left .3s ease, fill .2s ease .2s;
  transition: top .3s ease, left .3s ease, fill .2s ease .2s;
}

body {
  background: #E8EBF3;
  height: 100vh;
  font: 400 16px 'Varela Round', sans-serif;
  display: -webkit-box;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
          flex-direction: column;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
}
body .socials {
  position: fixed;
  display: block;
  left: 20px;
  bottom: 20px;
}
body .socials > a {
  display: block;
  width: 30px;
  opacity: var(--opacity, 0.2);
  -webkit-transform: scale(var(--scale, 0.8));
          transform: scale(var(--scale, 0.8));
  -webkit-transition: -webkit-transform 0.3s cubic-bezier(0.38, -0.12, 0.24, 1.91);
  transition: -webkit-transform 0.3s cubic-bezier(0.38, -0.12, 0.24, 1.91);
  transition: transform 0.3s cubic-bezier(0.38, -0.12, 0.24, 1.91);
  transition: transform 0.3s cubic-bezier(0.38, -0.12, 0.24, 1.91), -webkit-transform 0.3s cubic-bezier(0.38, -0.12, 0.24, 1.91);
}
body .socials > a:hover {
  --scale: 1;
}
</style>

<div class="search">
<input type="text" placeholder="search" />
<div class="symbol">
<svg class="cloud">
<use xlink:href="#cloud" />
</svg>
<svg class="lens">
<use xlink:href="#lens" />
</svg>
</div>
</div>

<svg xmlns="http://www.w3.org/2000/svg" style="display: none;">
<symbol xmlns="http://www.w3.org/2000/svg" viewBox="0 0 35 35" id="cloud">
<path d="M31.714,25.543c3.335-2.17,4.27-6.612,2.084-9.922c-1.247-1.884-3.31-3.077-5.575-3.223h-0.021
	C27.148,6.68,21.624,2.89,15.862,3.931c-3.308,0.597-6.134,2.715-7.618,5.708c-4.763,0.2-8.46,4.194-8.257,8.919
	c0.202,4.726,4.227,8.392,8.991,8.192h4.873h13.934C27.784,26.751,30.252,26.54,31.714,25.543z" />
</symbol>
<symbol xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" id="lens">
<path d="M15.656,13.692l-3.257-3.229c2.087-3.079,1.261-7.252-1.845-9.321c-3.106-2.068-7.315-1.25-9.402,1.83
	s-1.261,7.252,1.845,9.32c1.123,0.748,2.446,1.146,3.799,1.142c1.273-0.016,2.515-0.39,3.583-1.076l3.257,3.229
	c0.531,0.541,1.404,0.553,1.95,0.025c0.009-0.008,0.018-0.017,0.026-0.025C16.112,15.059,16.131,14.242,15.656,13.692z M2.845,6.631
	c0.023-2.188,1.832-3.942,4.039-3.918c2.206,0.024,3.976,1.816,3.951,4.004c-0.023,2.171-1.805,3.918-3.995,3.918
	C4.622,10.623,2.833,8.831,2.845,6.631L2.845,6.631z" />
</symbol>
</svg>
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Javascript Code: Hiding Search Box

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