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HTML

              
                <div class="container">
  <form data-state="typing">
    <input type="password" placeholder="Password">
    <button type="submit">
      <div class="submit-bg"></div>
      <svg class="icon-arrow" viewBox="0 0 31.49 31.49">
        <path d="M21.205 5.007c-.429-.444-1.143-.444-1.587 0-.429.429-.429 1.143 0 1.571l8.047 8.047H1.111C.492 14.626 0 15.118 0 15.737c0 .619.492 1.127 1.111 1.127h26.554l-8.047 8.032c-.429.444-.429 1.159 0 1.587.444.444 1.159.444 1.587 0l9.952-9.952c.444-.429.444-1.143 0-1.571l-9.952-9.953z"/>
      </svg>
      <svg class="icon-error" viewBox="0 0 100 100">
       <path d="M10 10 L90 90 M10 90 L90 10"/>
      </svg>
      <svg class="icon-success" viewBox="0 0 100 100">
        <path d="M0 60 L40 100 L100 0"/>
      </svg>
    </button>
    <span class="message message--error">Oops!</span>
    <span class="message message--success">Yes!</span>
  </form>
  <p>Try "<strong>pass</strong>"</p>
</div>
              
            
!

CSS

              
                .container {
  display: flex;
  height: 100vh;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

p {
  color: rgba(0,0,0,0.3);
}

form {
  position: relative;
  max-width: 250px;
  width: 100%;
  display: flex;
  align-items: center;
  font-size: 20px;
  border-radius: 1.7em;
  box-shadow:0 0 20px rgba(0,0,0,0.2);
  overflow: hidden;
}

input[type="password"]{
  border: none;
  line-height: 2.8em;
  width: 100%;
  padding-left: 1.5em;
  transition: opacity 600ms, transform 300ms;
  
  &:focus {
    outline: none;
  }
  
  &::placeholder {
    color: rgba(0,0,0,0.2);
  }
}

button {
  color: #fff;
  background: none;
  border: none;
  width: 2.1em;
  height: 2.1em;
  flex-shrink: 0;
  margin-right: 0.45em;
  text-align: center;
  border-radius: 50%;
  position: relative;
  z-index: 2;
  padding: 0;
  
  &:focus {
    outline: none;
  }
  
  svg {
    position: absolute;
    display: block;
    width: 50%;
    height: 40%;
    top: 30%;
    left: 25%;
    margin: 0;
    fill: currentColor;
  }
}

.icon-error {
  opacity: 0;
}

.icon-success {
  fill: transparent;
}

.icon-error path,
.icon-success path {
  stroke: #fff;
  stroke-width: 8;
}

.icon-success path {
  stroke-dasharray: 175;
  stroke-dashoffset: 175;
}

.submit-bg {
  background: #65D9F9;
  position: absolute;
  border-radius: 50%;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  overflow: hidden;
  transition: transform 300ms ease-in-out;
  
  &::before , &::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    opacity: 0;
    transition: opacity 500ms;
  }
  
  &::before {
    background: #68D38B;
  }
  
  &::after {
    background: #E8426E;
  }
}

.message {
  position: absolute;
  color: #fff;
  left: 0;
  right: 0;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translateX(3em);
  transition: transform 500ms, opacity 250ms;
  z-index: 2;
}

form:not([data-state="typing"]) {
  input {
    transition: opacity 300ms, transform 1s;
    transform: translateX(-2em);
    opacity: 0;
  }
 
  .submit-bg {
    transform: scale(11);
  }
  .message {
    transform: none;
  }
}

form[data-state="success"] {
  .submit-bg::before,
  .message--success {
    opacity: 1;
  }
}

form[data-state="error"] {
  .submit-bg::after,
  .message--error {
    opacity: 1;
  }
}
              
            
!

JS

              
                let submitButton = document.querySelector('button');
let input = document.querySelector('input');
let form = document.querySelector('form');
let arrow = document.querySelector('.icon-arrow');
let close = document.querySelector('.icon-error');
let check = document.querySelector('.icon-success');
let checkPath = document.querySelector('.icon-success path');

console.log(checkPath.getTotalLength());
submitButton.addEventListener('click', (e)=>{
  e.preventDefault();
  if(form.dataset.state != "typing") {
    TweenMax.to(close,0.5,{
      opacity:0,
      rotation:0
    });
    TweenMax.fromTo(check,0.5,{
      rotation:360*3
    },{
      rotation:0
    });
    TweenMax.to(checkPath,0.5,{
      strokeDashoffset:175
    });
    form.dataset.state = "typing";
    TweenMax.fromTo(arrow,0.45,{
      rotation:0,
      x:'-60px',
      opacity:'0'
    },{
      rotation:0,
      x:'0',
      opacity:'1'
    });
    return;
  }
  
  TweenMax.to(arrow,1,{
    rotation: 360*5,
    transformOrigin: "50% 50%",
    opacity: 0
  });
  
  setTimeout(()=>{
    if(input.value != 'pass') {
      form.dataset.state = "error";
      TweenMax.to(close,0.5,{
        rotation: 360*3,
        opacity: 1
      });
    } else {
      form.dataset.state = "success";
      TweenMax.to(checkPath,0.65,{
        strokeDashoffset: 0
      });
    }
  },500);
});
              
            
!
999px

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