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                <div class="skew">
      <h1>Input GrowBox</h1>

          CSS GrowBox: <span id="span1" contenteditable="true">This is a GROWIE textbox see.......</span>

        JS GrowBox: <input id="txt" type="text" onkeypress=" = ((this.value.length >= 0 && this.value.length <= 3 ? 15 : this.value.length * 7)  ) + 'px';">


                #span1 {
-moz-appearance: textfield;
-webkit-appearance: textfield;
background-color: white;
background-color: -moz-field;
border: 0.5px solid #ABADB3;
border-bottom: 0.5px solid #E3E9EF;
border-right: 0.5px solid #E3E9EF;
font: -moz-field;
font: -webkit-small-control; 
padding-left: 5px;
white-space: nowrap;

.skew {
  height: 110%;
  width: 45%;
  padding: 20px;
  position: absolute;
  top: -5%;
  transform: skew(8deg);
  margin-left: 10%;

h1 {
  transform: skew(-24deg);
  margin-bottom: 7%;

section {
  border-top: solid 0.5px;
  border-left: solid 0.5px;
  padding-top: 10px;
  padding-left: 10px;
  margin: 3% 0 0 10%;   
  transform: skew(-24deg);
body {
background: #26558b; /* Old browsers */
background: -moz-linear-gradient(45deg,  #26558b 0%, #3a8bc2 16%, #4bb8f0 29%, #419ad6 41%, #3a84c3 49%, #6199c7 50%, #aac5de 83%, #cedbe9 100%); /* FF3.6-15 */
background: -webkit-linear-gradient(45deg,  #26558b 0%,#3a8bc2 16%,#4bb8f0 29%,#419ad6 41%,#3a84c3 49%,#6199c7 50%,#aac5de 83%,#cedbe9 100%); /* Chrome10-25,Safari5.1-6 */
background: linear-gradient(45deg,  #26558b 0%,#3a8bc2 16%,#4bb8f0 29%,#419ad6 41%,#3a84c3 49%,#6199c7 50%,#aac5de 83%,#cedbe9 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#26558b', endColorstr='#cedbe9',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */




                (function() {
  var s = document.getElementById("txt");
  var x1 = "This is a GROWIE textbox see.......";
  s.value = x1; = ((x1.length * 6)  ) + 'px';