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CSS

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JavaScript

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HTML 

              
                <form method="post" action="#">
  <svg width="200px" height="200px" viewBox="0 0 200 200" aria-labelledby="svg-title svg-desc">
    <title id="svg-title">Floating Ghost</title>
    <desc id="svg-desc">A smiling ghost that floats ups and down while looking at the user interactions.</desc>
    <style type="text/css">
      @keyframes float { 
        from { transform: translate(0, 0px); }
        to   { transform: translate(0, 8px); } 
      }
      @keyframes float-arm { 
        from { transform: translate(-1px, 0px); }
        to   { transform: translate(1px, 4px); } 
      }
      #ghost-body { animation: float 2s linear alternate infinite; }
      .ghost-arm { animation: float-arm 3s linear alternate infinite; }
      .pupil, #mouth, .ghost-arm { transition: all 0.25s; }
    </style>
    <g id="ghost-body" fill="white" fill="#fff" stroke="#999" stroke-width="3" stroke-linejoin="round">
      <path d="M 54,181 C 44,131 13,11 99,11 185,12 164,110 150,182 146,195 139,185 137,177 134,170 126,169 124,179 120,192 114,190 109,179 105,167 98,166 94,179 92,185 85,193 79,179 74,170 68,168 66,179 62,193 56,191 54,181 Z" />
      <path id="eye-right" class="eye" fill="#ffffee" d="M 69,71 C 69,64 73,54 84,55 96,56 100,62 100,70 100,79 89,83 84,83 78,83 69,80 69,71 Z" />
      <path id="eye-left" class="eye" fill="#ffffee" d="M 105,73 C 104,66 108,57 120,57 130,57 134,65 134,71 134,80 125,85 119,85 114,85 105,82 105,73 Z" />
      <circle id="pupil-right" class="pupil" cx="84" cy="69" r="3" fill="rgba(0,0,0,0.25)" />
      <circle id="pupil-left" class="pupil" cx="120" cy="71" r="3" fill="rgba(0,0,0,0.25)" />
      <path id="mouth" d="M 75,115 C 79,120 91,126 101,125 110,125 126,118 127,114 125,117 117,125 101,125 85,126 79,117 75,115 Z" fill="#aa4040" stroke="#600" />
      <path id="ghost-arm-right" class="ghost-arm" d="M 45,89 C 25,92 9,108 11,124 13,141 27,115 48,119" />
      <path id="ghost-arm-left" class="ghost-arm" d="M 155,88 C 191,90 194,114 192,125 191,137 172,109 155,116" data-hover="M 155,88 C 145,68 105,51 103,62 102,74 123,117 155,116" style="animation-delay:-1s" />
    </g>
  </svg>
  <fieldset id="email-field" class="with-placeholder">
    <legend>Email</legend>
    <div>
      <input type="email" name="email" id="email"  autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" required />
      <div class="placeholder">e.g. username@example.com</div>
    </div>
  </fieldset>
  <fieldset id="password-field">
    <legend>Password</legend>
    <div>
      <input type="password" name="password" id="password"  autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" required />
    </div>
  </fieldset>
  <fieldset id="submit-field">
    <legend></legend>
    <div>
      <input type="submit" name="submit" id="submit" value="Login"/>
    </div>
  </fieldset>
</form>

<footer>
  Inspired by <a href="https://codepen.io/dsenneff/full/2c3e5bc86b372d5424b00edaf4990173/">Darin's amazing Pen</a>
</footer>
!

CSS 

              
                @import url('https://fonts.googleapis.com/css?family=Roboto|K2D');

body {
  /* Frankenstein Green?
  --light-main-color: #293532;
  --dark-main-color: #57ad68;
  --darker-main-color: #227744;
  */
  --light-main-color: rgba(235,97,35, 0.4)/*#221925*/;
  --dark-main-color: #ee7c11;
  --darker-main-color: #bf6d1c;
  display: grid;
  place-items: center;
  background: var(--light-main-color);
  font-size: 16px;
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
  font-family: K2D,Roboto, Arial, Verdana, sans-serif;
}

form {
  display: inline-block;
  background: #f5f5f5;
  padding: 1.5rem;
  border: 3px solid var(--dark-main-color);
/*   position: absolute;
  top: 50%;
  left: 50%; 
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  */
  width: 350px;
  box-sizing: border-box;
  border-radius: 4px;
  margin: 3rem auto;
}

form svg {
  margin: auto auto;
  display: block;
}

fieldset {
  border: 0;
  padding: 0;
  margin: 1.2rem 0 0 0;
}

legend {
  margin: 0;
  padding: 0;
  color: var(--darker-main-color);
}

fieldset > div {
  border: 3px solid var(--dark-main-color);
  border-radius: 3px;
  position: relative;
  margin-top: 0.5rem;
  background: white;
}

fieldset#submit-field > div {
  border-color: var(--darker-main-color);
  background: var(--darker-main-color);
}

fieldset .placeholder {
  position: absolute;
  top: 50%;
  left: 1rem;
  -webkit-transform: translate(0, -50%);
  transform: translate(0, -50%); 
  z-index: 5;
  font-size: 1.1rem;
  transition: all 0.25s;
  color: #666;
  pointer-events: none;
}

fieldset .placeholder.active {
  font-size: 0.6rem;
  color: #999;
  margin-top: -0.8rem;
}

fieldset input {
  display: block;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  background: transparent;
  border: 0;
  padding: 1rem;
  font-size: 1.1rem;
  position: relative;
  z-index: 3;
  outline-color: var(--dark-main-color);
}

fieldset.with-placeholder input {
  padding: 1.3rem 1rem 0.7rem 1rem;
}

fieldset input[type=submit] {
  border: 0;
  color: white;
  cursor: pointer;
  font-family: Roboto, K2D, Arial, Verdana, Sans-serif;
}

footer {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
}
!

JS 

              
                // generic: inputs with placeholder will have some animation to minimize the placeholder
document.querySelectorAll("fieldset.with-placeholder input").forEach(function(el, idx) {
  el.addEventListener("focus", function() {
    this.parentNode.querySelector(".placeholder").classList.add("active");
  });
  el.addEventListener("blur", function() {
    if (this.value == "") {
      this.parentNode.querySelector(".placeholder").classList.remove("active");
    }
  })
});

function updateMouthEyes() {
   if (email.value.length > 0) {
    if (email.value.indexOf("@") > 0 && email.value.indexOf("@") < email.value.length - 1) {
    document.querySelector("#mouth").setAttribute("d", "M 75,115 C 79,110 92,117 102,117 111,117 123,111 127,114 131,117 123,136 102,136 81,137 73,121 75,115 Z");
    } else {
      document.querySelector("#mouth").setAttribute("d", "M 75,115 C 79,110 92,119 101,119 110,119 123,111 127,114 131,117 118,131 102,132 87,132 73,121 75,115 Z");
    }
  } else {
    document.querySelector("#mouth").setAttribute("d", "M 75,115 C 79,120 91,126 101,125 110,125 126,118 127,114 125,117 117,125 101,125 85,126 79,117 75,115 Z");
  }
  
  let pupilRight = document.querySelector("#pupil-right");
  let pupilLeft = document.querySelector("#pupil-left");
  let movePos = email.value.length > 30 ? 13.33 : email.value.length / 2.25 ;
  pupilRight.setAttribute("cy", 75);
  pupilLeft.setAttribute("cy", 76);
  pupilRight.setAttribute("cx", 78 + movePos)
  pupilLeft.setAttribute("cx", 113 + movePos);
}

let email = document.querySelector("#email");
email.addEventListener("focus", updateMouthEyes);
email.addEventListener("input", updateMouthEyes);
email.addEventListener("blur", function() {
  let pupilRight = document.querySelector("#pupil-right");
  let pupilLeft = document.querySelector("#pupil-left");
  pupilRight.setAttribute("cx", 84);
  pupilRight.setAttribute("cy", 69);
  pupilLeft.setAttribute("cx", 120);
  pupilLeft.setAttribute("cy", 71);
});

// password animation: move arms to cover eyes on focus, 
// and return to original position on blur
let password = document.querySelector("#password");
password.addEventListener("focus", function() {
  document.querySelector("#ghost-arm-left").setAttribute("d","M 155,88 C 145,68 105,51 103,62 102,74 123,117 155,116");
  document.querySelector("#ghost-arm-right").setAttribute("d", "M 45,89 C 54,64 103,48 106,64 108,80 65,121 48,119");
});
password.addEventListener("blur", function() {
  document.querySelector("#ghost-arm-left").setAttribute("d","M 155,88 C 191,90 194,114 192,125 191,137 172,109 155,116");
  document.querySelector("#ghost-arm-right").setAttribute("d", "M 45,89 C 25,92 9,108 11,124 13,141 27,115 48,119");
})
!
999px

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