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HTML

              
                <div class="voiceinator">

      <h1>The Voiceinator 5000</h1>

      <select name="voice" id="voices">
        <option value="">Select A Voice</option>
      </select>

      <label for="rate">Rate:</label>
      <input name="rate" type="range" min="0" max="3" value="1" step="0.1">

      <label for="pitch">Pitch:</label>

      <input name="pitch" type="range" min="0" max="2" step="0.1">
      <textarea name="text">Hello! I love JavaScript 👍</textarea>
      <button id="stop">Stop!</button>
      <button id="speak">Speak</button>

    </div>

              
            
!

CSS

              
                html {
  font-size: 10px;
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  background-color:#3BC1AC;
  display:flex;
  min-height: 100vh;
  align-items: center;

  background-image:
  radial-gradient(circle at 100% 150%, #3BC1AC 24%, #42D2BB 25%, #42D2BB 28%, #3BC1AC 29%, #3BC1AC 36%, #42D2BB 36%, #42D2BB 40%, transparent 40%, transparent),
  radial-gradient(circle at 0    150%, #3BC1AC 24%, #42D2BB 25%, #42D2BB 28%, #3BC1AC 29%, #3BC1AC 36%, #42D2BB 36%, #42D2BB 40%, transparent 40%, transparent),
  radial-gradient(circle at 50%  100%, #42D2BB 10%, #3BC1AC 11%, #3BC1AC 23%, #42D2BB 24%, #42D2BB 30%, #3BC1AC 31%, #3BC1AC 43%, #42D2BB 44%, #42D2BB 50%, #3BC1AC 51%, #3BC1AC 63%, #42D2BB 64%, #42D2BB 71%, transparent 71%, transparent),
  radial-gradient(circle at 100% 50%, #42D2BB 5%, #3BC1AC 6%, #3BC1AC 15%, #42D2BB 16%, #42D2BB 20%, #3BC1AC 21%, #3BC1AC 30%, #42D2BB 31%, #42D2BB 35%, #3BC1AC 36%, #3BC1AC 45%, #42D2BB 46%, #42D2BB 49%, transparent 50%, transparent),
  radial-gradient(circle at 0    50%, #42D2BB 5%, #3BC1AC 6%, #3BC1AC 15%, #42D2BB 16%, #42D2BB 20%, #3BC1AC 21%, #3BC1AC 30%, #42D2BB 31%, #42D2BB 35%, #3BC1AC 36%, #3BC1AC 45%, #42D2BB 46%, #42D2BB 49%, transparent 50%, transparent);
  background-size:100px 50px;
}


.voiceinator {
  padding:2rem;
  width:50rem;
  margin:0 auto;
  border-radius:1rem;
  position: relative;
  background:white;
  overflow: hidden;
  z-index: 1;
  box-shadow:0 0 5px 5px rgba(0,0,0,0.1);
}

h1 {
  width:calc(100% + 4rem);
  margin: -2rem 0 2rem -2rem;
  padding:.5rem;
  background: #ffc600;
  border-bottom: 5px solid #F3C010;
  text-align: center;
  font-size: 5rem;
  font-weight: 100;
  font-family: 'Pacifico', cursive;
  text-shadow:3px 3px 0 #F3C010;

}

.voiceinator input,
.voiceinator button,
.voiceinator select,
.voiceinator textarea {
  width: 100%;
  display: block;
  margin:10px 0;
  padding:10px;
  border:0;
  font-size: 2rem;
  background:#F7F7F7;
  outline:0;
}

textarea {
  height: 20rem;
}

input[type="select"] {

}

.voiceinator button {
  background:#ffc600;
  border:0;
  width: 49%;
  float:left;
  font-family: 'Pacifico', cursive;
  margin-bottom: 0;
  font-size: 2rem;
  border-bottom: 5px solid #F3C010;
  cursor:pointer;
  position: relative;
}

.voiceinator button:active {
  top:2px;
}

.voiceinator button:nth-of-type(1) {
  margin-right: 2%;
}

              
            
!

JS

              
                  const msg = new SpeechSynthesisUtterance();
  let voices = [];
  const voicesDropdown = document.querySelector('[name="voice"]');
  const options = document.querySelectorAll('[type="range"], [name="text"]');
  const speakButton = document.querySelector('#speak');
  const stopButton = document.querySelector('#stop');

msg.text = document.querySelector('[name="text"]').value;

function populateVoices(){
  voices = this.getVoices();
  voicesDropdown.innerHTML = voices
    .filter(voice => voice.lang.includes('en'))
    .map(voice => `<option value="${voice.name}">${voice.name} (${voice.lang})</option>`)
    .join('');
}
speechSynthesis.addEventListener('voiceschanged', populateVoices);

function setVoice() {
  msg.voice = voices.find(voice => voice.name === this.value)
}
voicesDropdown.addEventListener('change', setVoice)

function setOption() {
  msg[this.name] = this.value
  toggle()
}

options.forEach(option => option.addEventListener('change', setOption))

function toggle(startOver = true) {
  speechSynthesis.cancel()
  if (startOver) {
    speechSynthesis.speak(msg)
  }
}
speakButton.addEventListener('click', toggle)
stopButton.addEventListener('click', () => toggle(false))
              
            
!
999px

Console