<body>
  <form onsubmit="submitFn(this, event);">
    
    <div class="search-wrapper">
      <div class="input-holder">
        <input type="text" class="search-input" placeholder="Type to search" />
        <button class="search-icon" onclick="searchToggle(this, event);"><span></span></button>
      </div>
      
      <span class="close" onclick="searchToggle(this, event);"></span>
      
      <div class="result-container">
      </div>
    </div>
  </form>
</body>
html,body {
  height: 100%;
}
body {
  padding: 0px; 
  margin:0px; 
  background: rgb(0,26,201);
  background: linear-gradient(40deg, rgba(0,26,201,1) 0%, rgba(16,95,255,1) 47%, rgba(220,0,255,1) 100%);
}

.search-wrapper {
    position: absolute;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
}


.search-wrapper .input-holder {
    overflow: hidden;
    height: 70px;
    background: #878787;
    border-radius: 50%;
    position: relative;
    width:70px;
    -webkit-transition: all 0.3s ease-in-out;
    -moz-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
}
.search-wrapper.active .input-holder {
    border-radius: 50px;
    width: 450px;
    background: rgba(0,0,0,0.5);
    -webkit-transition: all .5s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    -moz-transition: all .5s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    transition: all .5s cubic-bezier(0.000, 0.105, 0.035, 1.570);
}

.search-wrapper .input-holder .search-input {
    width: 100%;
    height: 50px;
    padding:0px 70px 0 20px;
    opacity: 0;
    position: absolute;
    top: 0px;
    left: 0px;
    background: transparent;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    border: none;
    outline: none;
    font-family: "Open Sans", Arial, Verdana;
    font-size: 16px;
    font-weight: 400;
    line-height: 20px;
    color: #FFF;
    -webkit-transform: translate(0, 60px);
    -moz-transform: translate(0, 60px);
    transform: translate(0, 60px);
    -webkit-transition: all .3s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    -moz-transition: all .3s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    transition: all .3s cubic-bezier(0.000, 0.105, 0.035, 1.570);

    -webkit-transition-delay: 0.3s;
    -moz-transition-delay: 0.3s;
    transition-delay: 0.3s;
}
.search-wrapper.active .input-holder .search-input {
    opacity: 1;
    -webkit-transform: translate(0, 10px);
    -moz-transform: translate(0, 10px);
    transform: translate(0, 10px);
}

.search-wrapper .input-holder .search-icon {
    width: 70px;
    height: 70px;
    border: none;
    border-radius: 50%;
    background: #FFF;
    padding: 0px;
    outline: none;
    position: relative;
    z-index: 2;
    float: right;
    cursor: pointer;
    -webkit-transition: all 0.3s ease-in-out;
    -moz-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
}
.search-wrapper.active .input-holder .search-icon {
    width: 50px;
    height:50px;
    margin: 10px;
    border-radius: 30px;
}
.search-wrapper .input-holder .search-icon span {
    width: 22px;
    height: 22px;
    display: inline-block;
    vertical-align: middle;
    position: relative;
    //-webkit-transform: rotate(45deg);
    //-moz-transform: rotate(45deg);
    //transform: rotate(45deg);
    -webkit-transition: all .4s cubic-bezier(0.650, -0.600, 0.240, 1.650);
    -moz-transition: all .4s cubic-bezier(0.650, -0.600, 0.240, 1.650);
    transition: all .4s cubic-bezier(0.650, -0.600, 0.240, 1.650);

}
.search-wrapper.active .input-holder .search-icon span {
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    transform: rotate(-45deg);
}
.search-wrapper .input-holder .search-icon span::before, .search-wrapper .input-holder .search-icon span::after {
    position: absolute;
    content:'';
}
.search-wrapper .input-holder .search-icon span::before {
    width: 4px;
    height: 11px;
    left: 9px;
    top: 18px;
    border-radius: 0px;
    background: #974BE0;
}


.search-wrapper .input-holder .search-icon span::after {
    width: 14px;
    height: 14px;
    left: 0px;
    top: 0px;
    border-radius: 50%;
    border: 4px solid #974BE0;
}


//cancel icon
.search-wrapper .close {
    position: absolute;
    z-index: 1;
    top: 24px;
    right: 20px;
    width: 25px;
    height: 25px;
    cursor: pointer;
    -webkit-transform: rotate(-180deg);
    -moz-transform: rotate(-180deg);
    transform: rotate(-180deg);
    -webkit-transition: all .3s cubic-bezier(0.285, -0.450, 0.935, 0.110);
    -moz-transition: all .3s cubic-bezier(0.285, -0.450, 0.935, 0.110);
    transition: all .3s cubic-bezier(0.285, -0.450, 0.935, 0.110);
    -webkit-transition-delay: 0.2s;
    -moz-transition-delay: 0.2s;
    transition-delay: 0.2s;
}
.search-wrapper.active .close {
    right: -50px;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    transform: rotate(45deg);
    -webkit-transition: all .6s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    -moz-transition: all .6s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    transition: all .6s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    -webkit-transition-delay: 0.5s;
    -moz-transition-delay: 0.5s;
    transition-delay: 0.5s;
}
.search-wrapper .close::before, .search-wrapper .close::after {
    position: absolute;
    content: '';
    background: #FFF;
    border-radius: 2px;
}
.search-wrapper .close::before {
    width: 5px;
    height: 25px;
    left: 10px;
    top: 0px;
}
.search-wrapper .close::after {
    width: 25px;
    height: 5px;
    left: 0px;
    top: 10px;
}
.search-wrapper .result-container {
    width: 100%;
    position: absolute;
    top: 80px;
    left: 0px;
    text-align: center;
    font-family: "Open Sans", Arial, Verdana;
    font-size: 14px;
    display: none;
    color: #B7B7B7;
}


@media screen and (max-width: 560px) {
    .search-wrapper.active .input-holder {width:200px;}
}
View Compiled
function searchToggle(obj, evt){
            var container = $(obj).closest('.search-wrapper');

            if(!container.hasClass('active')){
                  container.addClass('active');
                  evt.preventDefault(); 
            }
            else if(container.hasClass('active') && $(obj).closest('.input-holder').length == 0){
                  container.removeClass('active');
                  // clear input
                  container.find('.search-input').val('');
                  // clear and hide result container when we press close
                  container.find('.result-container').fadeOut(100, function(){$(this).empty();});

            }
  

        }

        function submitFn(obj, evt){
            value = $(obj).find('.search-input').val().trim();

            _html = "Yup yup! Your search text sounds like this: ";
            if(!value.length){
                _html = "Yup yup! Add some text friend :D";
            }
            else{
                _html += "<b>" + value + "</b>";
            }

            $(obj).find('.result-container').html('<span>' + _html + '</span>');
            $(obj).find('.result-container').fadeIn(100);

            evt.preventDefault();
        }

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js