<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>

body {
   background: #212129;
}

::selection {
   background: #212129;
}

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

.search-wrapper .input-holder {
    height: 70px;
    width:70px;
    overflow: hidden;
    background: rgba(255,255,255,0);
    border-radius:6px;
    position: relative;
    transition: all 0.3s ease-in-out;
}
.search-wrapper.active .input-holder {
    width:450px;
    border-radius: 50px;
    background: rgba(0,0,0,0.5);
    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;
    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;
    transform: translate(0, 60px);
    transition: all .3s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    transition-delay: 0.3s;
}
.search-wrapper.active .input-holder .search-input {
    opacity: 1;
    transform: translate(0, 10px);
}
.search-wrapper .input-holder .search-icon {
    width:70px;
    height:70px;
    border:none;
    border-radius:6px;
    background: #FFF;
    padding:0px;
    outline:none;
    position: relative;
    z-index: 2;
    float:right;
    cursor: pointer;
    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;
    transform: rotate(45deg);
    transition: all .4s cubic-bezier(0.650, -0.600, 0.240, 1.650);
}
.search-wrapper.active .input-holder .search-icon span {
    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: 2px;
    background: #FE5F55;
}
.search-wrapper .input-holder .search-icon span::after {
    width: 14px;
    height: 14px;
    left: 0px;
    top: 0px;
    border-radius: 16px;
    border: 4px solid #FE5F55;
}
.search-wrapper .close {
    position: absolute;
    z-index: 1;
    top:24px;
    right:20px;
    width:25px;
    height:25px;
    cursor: pointer;
    transform: rotate(-180deg);
    transition: all .3s cubic-bezier(0.285, -0.450, 0.935, 0.110);
    transition-delay: 0.2s;
}
.search-wrapper.active .close {
    right:-50px;
    transform: rotate(45deg);
    transition: all .6s cubic-bezier(0.000, 0.105, 0.035, 1.570);
    transition-delay: 0.5s;
}
.search-wrapper .close::before, .search-wrapper .close::after {
    position:absolute;
    content:'';
    background: #FE5F55;
    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;
}

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('');
        }
}