<div class="speech">
  <div class="content">
  </div><div class="txtLine">
  <div class="show stretch"></div>
  <div class="hide">SPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACE!</div>
  </div>
</div>
body {
  padding: 0px;
  margin: 0px;
  background-color: black;
  text-align: center;
  position: absolute;
  top: 0px;
  bottom: 0px;
  left: 0px;
  right: 0px;
  overflow: hidden;
}

.speech {
  font-family: Verdana;
  color: #3ee0f5;
  position: relative;
  width: 200px;
  height: 100px;
  text-align: left;
  line-height: 20px;
  background-color: black;
  border: 3px solid #666;
  border-radius: 30px;
  box-shadow: inset 0 0 14px #3ee0f5;
  margin: 30px auto;
  z-index: 1000;
  word-break: break-all;
  padding: 10px 20px 20px 10px;
  vertical-align: middle;
  max-width:90%;
}

.content {
  position: absolute;
  top: 0px;
  bottom: 0px;
  left: 0px;
  right: 0px;
  z-index: 10000;
  box-sizing: border-box;
  pointer-events: none;
  border-radius: 30px;
  overflow: hidden;
}

.content:after,
.content:before {
  content: '';
  position: absolute;
  top: 0px;
  bottom: 0px;
  left: 0px;
  right: 0px;
  z-index: 10000;
  box-sizing: border-box;
  pointer-events: none;
  border-radius: 30px;
  overflow: hidden;
}

.content:before {
  background-image: repeating-linear-gradient( 0deg, rgba(0, 0, 0, .4), transparent 2px, rgba(0, 0, 0, .4) 1px, transparent 1px );
  animation: jiggle .2s linear infinite;
}

.content:after {
  background-image: repeating-linear-gradient( 90deg, rgba(0, 0, 0, .4) 1px, transparent 2px, rgba(0, 0, 0, .2) 1px, transparent 1px );
  animation: wiggle .2s linear infinite;
}


@keyframes wiggle {
  0% {
    margin-left: -1px;
  }

  50% {
    margin-left: 1px;
  }

  100% {
    margin-left: 0px;
  }
}

@keyframes jiggle {
  0% {
    margin-top: -1px;
  }

  50% {
    margin-top: 1px;
  }

  100% {
    margin-top: 0px;
  }
}

.speech:after,
.speech:before {
  content: ' ';
  position: absolute;
  width: 0;
  height: 0;
  top: 100%;
  z-index: 1001;
}

.speech:after {
  left: 32px;
  border: 12px solid;
  border-color: rgba(0,0,0,1) transparent transparent rgba(0,0,0,1);
}

.speech:before {
  left: 30px;
  border: 15px solid;
  border-color: #666 transparent transparent #666;
}

.txtLine {
  position: absolute;
  left:5px;
  display: block;
  width: 100%;
}

.txtLine div {
  position: absolute;
  left:10px;
  display: inline-block;
  max-width: 100%;
}

.show {
  padding-right: 20px;
}

.show div {
  right: 0px;
  height: 100%;
  width: 20px;
}

.show div:before {
  content: '';
  position: absolute;
  top: 0px;
  left: 0px;
  height: 100%;
  width: 100%;
  animation: letters .2s linear infinite;
}


.hide {
  overflow: hidden;
  width: 50px;
  visibility: hidden;
}
$(document).ready(function () {
  $(document).ready(function () {

    $.line(0, $('.txtLine').first());


    $(window).resize(function () {
      $('.txtLine').css({ 'margin-left': Math.ceil($('body').outerWidth() / 5) });
    });
  });


  $.line = function (i, line) {
    $(line).delay(i * 1000).queue(function (n) {
      var shw = $(line).find('.show');
      var hid = $(line).find('.hide');
      var txt = $(hid).text();
      if ($(shw).hasClass('stretch')) {
        $(shw).parents('.speech').css({ 'height': 40 });
      }
      $(shw).prepend('<div></div>');
      for (var ii = 0; ii < txt.length; ii++) {

        $.letter(ii, line, shw, hid, txt, i);
      }

      n();

    });
  }

  $.letter = function (ii, line, shw, hid, txt, i) {
    $(line).delay(50).queue(function (n) {
      var char = txt[ii];
      $(shw).html($(shw).html() + char);
      n();

      if ($(shw).hasClass('stretch')) {

        if ($(shw).outerWidth() > $(shw).parents('.speech').outerWidth() - 20) {
          $(shw).parents('.speech').css({ 'width': $(shw).parents('.speech').outerWidth() + 1 });
        }
        if ($(shw).outerHeight() > $(shw).parents('.speech').outerHeight() - 20) {
          console.log($(shw).parents('.speech').outerHeight() + 10);
          $(shw).parents('.speech').css({ 'height': $(shw).parents('.speech').outerHeight() + 1 });
        }
        else{

        }

      } else {
        if ($(shw).outerHeight() > $(shw).parents('.speech').outerHeight() - 20) {
          $(shw).parents('.speech').css({ 'height': $(shw).parents('.speech').outerHeight() + 1 });
        }
      }


      if (ii == (txt.length - 1)) {

        $(line).delay(10).queue(function (n) {
          $(shw).css({ 'border-bottom': '', 'box-shadow': '' });
          $(shw).find('div').remove();
          var incr = i++;
          $.line(incr, $(line).next());
          n();
        });
      }
    });
  }
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js