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JavaScript

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HTML 

              
                <body>
  <main>
    <h1>L'interMEDIAire</h1>
    <h2>Titre 2</h2>
    <textarea class="js_cambridgeText" name="cambridge">Tu veux mélanger les lettres de ce textes tout en le laissant lisible ? Clique sur ok !</textarea>
      <button class="js_cambridge">Ok</button>
      <br><br>
      <p class="text"></p>
  </main>
</body>
!

CSS 

              
                /*COULEURS*/
$noir:        rgba(0,0,0,1);
$noirfonce:   rgba(29,31,32,1);
$noiropaque:  rgba(29,31,32,.9);
$rose:        rgba(152,38,114,1);
$bleu:        rgba(128,155,189,1);
$blanc:       rgba(255,255,255,1);
$gris:        rgba(55,55,55,1);
$gris2:       rgba(255,255,255,.8);
$gris3:       rgba(204,204,204,1);
$padding:     20px 10px;

/*TOUS LES ELEMENTS*/
*,*:after,*:before {
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
}

body {
  margin: 0px auto;
  width: 640px;
  background: $noir;
  color: $blanc;
  font-size: 1em;
  padding: $padding;
}

main {
  padding: $padding;
  background: $noirfonce;
}

h1 {
  margin: 0;
  padding: 0;
  font-size: 1.4em;
  color: $bleu;
}

h2 {
  margin-top: 15px;
  width: 100%;
  color: $rose;
}

h1,h2,h3 {
  font-family: 'Inconsolata', monospace;
}

p {
  opacity: .85;
  color: $gris2;
  line-height: 1.6em;
}

textarea {
  width: 100%;
  background: $noir;
  color: $gris2;
  border: 2px solid grey;
  outline: none;
}

button {
  margin-top: 12px;
  width: 123px;
  height: 40px;
  background: black;
  border: 2px solid white;
  color: white;
  cursor: pointer;

  &:hover,
  &:active {
    background: $rose;
  }
}
!

JS 

              
                $(document).ready(function() {
  function enigmaGenerator(text,element) {
    var finaltext = "",
        array = text.split(' ');
    for (i in array) {
        var firsttLetter = array[i].slice(0, 1),
        lasttLetter = array[i].slice(-1),
        word = array[i].slice(1, -1),
        shuffled = word.split('').sort(function(){return 0.5-Math.random()}).join('');
        finaltext += firsttLetter + shuffled + lasttLetter+ ' ';
    }
    element.text(finaltext);
  }

  $('.js_cambridge').on('click', function() {
    var text = $('.js_cambridgeText').val(),
        element = $('.text');
    enigmaGenerator(text,element);
  });

});
!
999px

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