input with animation

by youssef moudine

HTML

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<div id="inupt-container">
  <input type="text" placeholder="Search...">
  <div id="btn-add"></div>
  <div id="message">a name is required</div>
</div>

CSS

#inupt-container{
  outline: 1px dashed red!important;
  position:relative;
  width: 300px;
  height: 40px;
}

#btn-add{
  position:absolute;
  top: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background: crimson;
  border-radius: 50%;
  transition: all 1s;
  z-index: 4;
  box-shadow: 0 0 25px 0 rgba(0, 0, 0, 0.4);
}
#btn-add:hover {
  cursor: pointer;
}
#btn-add::before {
  content: "";
  position: absolute;
  margin: auto;
  top: 22px;
  right: 0;
  bottom: 0;
  left: 22px;
  width: 12px;
  height: 2px;
  background: white;
  transform: rotate(45deg);
  transition: all .5s;
}
#btn-add::after {
  content: "";
  position: absolute;
  margin: auto;
  top: -5px;
  right: 0;
  bottom: 0;
  left: -5px;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  border: 2px solid white;
  transition: all .5s;
}
input {
  font-family: 'Inconsolata', monospace;
  position:absolute;
  top: 5px;
  right: 0;
  width: 30px;
  height: 30px;
  outline: none;
  border: none;
  background: crimson;
  color: white;
  text-shadow: 0 0 10px crimson;
  padding: 0 45px 0 15px;
  border-radius: 30px;
  box-shadow: 0 0 25px 0 crimson, 0 20px 25px 0 rgba(0, 0, 0, 0.2);
  transition: all 1s;
  opacity: 0;
  z-index: 5;
  font-weight: bolder;
  letter-spacing: 0.1em;
}
input:hover {
  cursor: pointer;
}


input.active {
  width: 240px;
  opacity: 1;
  cursor: text;
}
#btn-add.active  {
  background: black;
  z-index: 6;
}
#btn-add.active ::before {
  top: 8px;
  left: -13px;
  width: 9px;
  background: blue;
}
input:focus ~ #btn-add::after {
  top: 0px;
  left: 5px;
  width: 20px;
  height: 2px;
  border: none;
  background: blue;
  border-radius: 0%;
  transform: rotate(-45deg);
}
input::placeholder {
  color: white;
  opacity: 0.5;
  font-weight: bolder;
}

JavaScript

let btn = $('#btn-add');
let input = $('#inupt-container input');
btn.on('click', e => {
  if(btn.hasClass('active')){
  	console.log('hide');
    btn.removeClass('active');
    input.removeClass('active');
  }else{
  	console.log('show');
    btn.addClass('active');
    input.addClass('active');
  }
})