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About the <head>

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HTML 

              
                <head>
  <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap" rel="stylesheet">
</head>

<body>
  <div class="amp-story-page">
    <div class="interactive-component">
      <div class="interactive-container">
        <div class="interactive-prompt-container">
          <textarea class="interactive-prompt" rows="2" oninput='this.style.height="0px";this.style.height = (this.scrollHeight-4) + "px"'>Did you like that movie</textarea>
        </div>
        <div class="i-amphtml-story-interactive-binary-poll-option-container">
          <div class="i-amphtml-story-interactive-option i-amphtml-story-interactive-option-selected">
            <span class="i-amphtml-story-interactive-option-percent-bar"></span>
            <span class="i-amphtml-story-interactive-option-text-container">
              <span class="i-amphtml-story-interactive-option-title"><textarea class="i-amphtml-story-interactive-option-title-text" rows="1" oninput='this.style.height="0px";this.style.height = (this.scrollHeight - 4) + "px";updateScale()'>yes</textarea></span>
              <span class="i-amphtml-story-interactive-option-percentage-text">50%</span>
            </span>
          </div><span class="i-amphtml-story-interactive-option-divider"></span>
          <div class="i-amphtml-story-interactive-option">
            <span class="i-amphtml-story-interactive-option-percent-bar"></span>
            <span class="i-amphtml-story-interactive-option-text-container">
              <span class="i-amphtml-story-interactive-option-title"><textarea class="i-amphtml-story-interactive-option-title-text" rows="1" oninput='this.style.height="0px";this.style.height = (this.scrollHeight - 4) + "px";updateScale()'>no</textarea></span>
              <span class="i-amphtml-story-interactive-option-percentage-text">50%</span>
            </span>
          </div>
        </div>
      </div>

      <div class="toggle-options">
        <span><strong>Configure quiz</strong></span>
        <div class="switch">
          <select onchange="toggleDark(this)">
            <option selected="selected">light</option>
            <option>dark</option>
          </select>
          <label>theme</label>
        </div>
        <div class="switch">
          <select onchange="promptChange(this)">
            <option>small</option>
            <option selected="selected">medium</option>
            <option>large</option>
          </select>
          <label>prompt</label>
        </div>
        <div class="switch">
          <input type="color" value="#005af0" onchange="changeColor(this)">
          <label>accent</label>
        </div>
        <div class="switch">
          <input type="checkbox" onclick="toggleAnswered(this)">
          <label>Answered</label>
        </div>
      </div>
    </div>
</body>
!

CSS 

              
                html,
body {
  height: 100%;
}

body {
  background-color: #202125;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Poppins", sans-serif;
  font-size: 16px;
}

.toggle-options {
  background: white;
  width: 150px;
  padding: 16px 16px;
  border-radius: 32px;
  border-bottom-left-radius: 0px;
  position: absolute;
  top: -5px;
  right: 0px;
  transform: translatey(-100%);
  opacity: 0.1;
  transition: opacity 0.2s ease-in-out;
}

.interactive-component:hover .toggle-options {
  opacity: 1;
}

select {
  width: 80px;
  font-family: "Poppins", sans-serif;
}

.amp-story-page {
  width: 500px;
  height: 800px;
  background-color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url("https://images.unsplash.com/photo-1595364397663-fca4f075d796?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1234&q=80");
  box-shadow: 0px 5px 10px 0px #00000060;
}

.interactive-component {
  width: 100%; /* Width can be changed for the component, default is 100% */
  /* Properties overrideable by user (view examples) */
  --interactive-accent-color: #005af0;
  --interactive-prompt-background: var(--interactive-accent-color);
  --interactive-prompt-text-color: white;
  --interactive-prompt-alignment: initial;
  /* Shared properties by interactives (do not modify) */
  height: auto;
  min-width: 14em;
  max-width: 18em;
  --i-amphtml-interactive-option-accent-color: var(--interactive-accent-color);
  --i-amphtml-interactive-option-background-color: white;
  --i-amphtml-interactive-option-text-color: #5f6368;
  --i-amphtml-interactive-theme-border: rgba(0, 0, 0, 0.2);
  --i-amphtml-interactive-theme-shading: rgba(95, 99, 104, 0.2);
  --i-amphtml-interactive-chip-radius: 2em;
  --i-amphtml-interactive-chip-shadow: 0px 0px 0px transparent;
  --i-amphtml-interactive-chip-shadow-inset: inset 0px 0px 0px transparent;
  --i-amphtml-interactive-answer-choice-border: var(--interactive-accent-color);
  --i-amphtml-interactive-answer-choice-background: white;
  --i-amphtml-interactive-prompt-text-size: 1.375em;
  --i-amphtml-interactive-prompt-line-height: 1.3em;
  --i-amphtml-interactive-strong-text-color: black;
  --i-amphtml-interactive-component-shadow: 0px 4px 12px rgba(60, 64, 67, 0.08),
    0px 2px 4px rgba(60, 64, 67, 0.12);
  --i-amphtml-interactive-animation-time: 0.3s !important;
  --i-amphtml-interactive-ease-out-curve: cubic-bezier(0.3, 0, 0, 1) !important;
  position: relative;
  --post-select-scale-variable: 1;
}

.interactive-component[theme="dark"] {
  --i-amphtml-interactive-option-text-color: #9aa0a6;
  --i-amphtml-interactive-option-background-color: #202124;
  --i-amphtml-interactive-theme-border: rgba(255, 255, 255, 0.2);
  --i-amphtml-interactive-theme-shading: rgba(154, 160, 166, 0.2);
  --i-amphtml-interactive-theme-shading-flash: rgba(154, 160, 166, 0.4);
  --i-amphtml-interactive-strong-text-color: white;
  --i-amphtml-interactive-option-accent-color: white !important;
}

.interactive-component[chip-style="shadow"] {
  --i-amphtml-interactive-chip-shadow: 0px 2px 8px rgba(60, 60, 60, 0.2);
  --i-amphtml-interactive-chip-shadow-inset: inset 4px 4px 8px
    rgba(0, 0, 0, 0.2);
  --i-amphtml-interactive-theme-border: rgba(0, 0, 0, 0);
}

.interactive-component[chip-style="shadow"][theme="dark"] {
  --i-amphtml-interactive-chip-shadow: 0px 2px 8px 0px rgba(0, 0, 0, 0.6);
  --i-amphtml-interactive-chip-shadow-inset: inset 4px 4px 8px
    rgba(0, 0, 0, 0.4);
}

.interactive-component[prompt-size="large"] {
  --i-amphtml-interactive-prompt-text-size: 1.75em;
}

.interactive-component[prompt-size="small"] {
  --i-amphtml-interactive-prompt-text-size: 1.125em;
}

.interactive-prompt-container {
  display: flex;
  justify-items: center;
  padding: 1.25em;
}

.interactive-prompt {
  margin: 0px;
  overflow: hidden;
  font-size: var(--i-amphtml-interactive-prompt-text-size);
  line-height: var(--i-amphtml-interactive-prompt-line-height);
  font-weight: bold;
  text-align: var(--interactive-prompt-alignment);
  color: var(--interactive-prompt-text-color);
  font-family: "Poppins", sans-serif;
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
  resize: none;
  max-height: calc(3 * var(--i-amphtml-interactive-prompt-line-height));
  text-align: center;
}

.interactive-container {
  background: var(--interactive-prompt-background);
  border-radius: 2em;
}

.i-amphtml-story-interactive-binary-poll-option-container {
  background: var(--i-amphtml-interactive-option-background-color) !important;
  display: flex !important;
  justify-content: center !important;
  height: 5.625em !important;
  border-radius: 1em !important;
  overflow: hidden !important;
  box-shadow: var(--i-amphtml-interactive-component-shadow) !important;
  /* overflow bug fix for percent bar animation on ios safari  */
  transform: translateZ(0) !important;
  --post-select-scale: 0.5 !important;
}

.i-amphtml-story-interactive-option {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
  flex-direction: column !important;
  width: 50%;
  position: relative !important;
}

.i-amphtml-story-interactive-prompt {
  text-align: center !important;
}

.i-amphtml-story-interactive-option-text-container {
  width: 100% !important;
  display: flex !important;
  align-items: center !important;
  flex-direction: column !important;
  transform: translateY(calc(1em + 1px)) !important;
}

.i-amphtml-story-interactive-post-selection
  .i-amphtml-story-interactive-option-text-container {
  transition: transform var(--i-amphtml-interactive-animation-time)
      var(--i-amphtml-interactive-ease-out-curve),
    opacity var(--i-amphtml-interactive-animation-time)
      var(--i-amphtml-interactive-ease-out-curve) !important;
  transform: translateY(0) !important;
}

.interactive-component:not(.i-amphtml-story-interactive-post-selection)
  .i-amphtml-story-interactive-option-divider {
  height: 100% !important;
  width: 1px !important;
  opacity: 0.3 !important;
  background-color: var(--i-amphtml-interactive-theme-border) !important;
}

.i-amphtml-story-interactive-option
  .i-amphtml-story-interactive-option-percent-bar {
  height: 100% !important;
  width: 100% !important;
  position: absolute !important;
  opacity: 0 !important;
  transform-origin: left !important;
  transition: transform var(--i-amphtml-interactive-animation-time)
    var(--i-amphtml-interactive-ease-out-curve) !important;
}

[dir="rtl"]
  .i-amphtml-story-interactive-option
  .i-amphtml-story-interactive-option-percent-bar {
  transform-origin: right !important;
}

.i-amphtml-story-interactive-option:last-child
  .i-amphtml-story-interactive-option-percent-bar {
  transform-origin: right !important;
}

[dir="rtl"]
  .i-amphtml-story-interactive-option:last-child
  .i-amphtml-story-interactive-option-percent-bar {
  transform-origin: left !important;
}

.i-amphtml-story-interactive-post-selection
  .i-amphtml-story-interactive-option.i-amphtml-story-interactive-option-selected
  .i-amphtml-story-interactive-option-percent-bar {
  background-color: var(--i-amphtml-interactive-option-accent-color) !important;
  opacity: 0.2 !important;
  animation: i-amphtml-interactive-animation-flash-background forwards
    var(--i-amphtml-interactive-animation-time)
    var(--i-amphtml-interactive-ease-out-curve);
}

.i-amphtml-story-interactive-option-title {
  font-weight: 800 !important;
  font-size: 1.75em !important;
  margin: 0 !important;
  width: 4.42em !important;
  height: 1.3em !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: transform var(--i-amphtml-interactive-animation-time)
    var(--i-amphtml-interactive-ease-out-curve) !important;
}

.i-amphtml-story-interactive-post-selection
  .i-amphtml-story-interactive-option-title {
  transform: scale(var(--post-select-scale)) !important;
}

.i-amphtml-story-interactive-option-title-text {
  font-size: 1em;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  display: -webkit-box !important;
  -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important;
  transition: transform var(--i-amphtml-interactive-animation-time)
    var(--i-amphtml-interactive-ease-out-curve) !important;
  line-height: 1.3em !important;
  border: none;
  text-align: center;
  resize: none;
  font-family: "Poppins";
  font-weight: 700;
  background: transparent;
  color: var(--i-amphtml-interactive-strong-text-color);
}

.i-amphtml-story-interactive-post-selection
  .i-amphtml-story-interactive-option-title-text {
  transform: scale(var(--post-select-scale-variable)) !important;
}

.i-amphtml-story-interactive-option-percentage-text {
  font-weight: 700 !important;
  font-size: 1.375em !important;
  transform: scale(0) !important;
  display: inline-block !important;
  transition: transform var(--i-amphtml-interactive-animation-time)
    var(--i-amphtml-interactive-ease-out-curve) !important;
  color: var(--i-amphtml-interactive-strong-text-color);
}

.i-amphtml-story-interactive-post-selection
  .i-amphtml-story-interactive-option-percentage-text {
  transform: scale(1) !important;
}

.interactive-component:not(.i-amphtml-story-interactive-post-selection)
  .i-amphtml-story-interactive-option:before {
  background-color: var(--i-amphtml-interactive-theme-shading-flash) !important;
  content: "" !important;
  position: absolute !important;
  width: 100% !important;
  height: 100% !important;
  left: 0 !important;
  opacity: 0 !important;
  animation: i-amphtml-interactive-animation-landing-animation-flash-background
    var(--i-amphtml-interactive-animation-time) !important;
  animation-delay: var(
    --i-amphtml-interactive-landing-animation-delay-offset-el1
  ) !important;
}

.i-amphtml-story-interactive-active:not(.i-amphtml-story-interactive-post-selection)
  .i-amphtml-story-interactive-option:nth-of-type(2):before {
  animation-delay: var(
    --i-amphtml-interactive-landing-animation-delay-offset-el2
  ) !important;
}

.i-amphtml-story-interactive-active:not(.i-amphtml-story-interactive-post-selection)
  .i-amphtml-story-interactive-option
  .i-amphtml-story-interactive-option-title-text {
  animation: i-amphtml-story-interactive-option-title-text-landing-animation
    var(--i-amphtml-interactive-animation-time) !important;
  animation-delay: var(
    --i-amphtml-interactive-landing-animation-delay-offset-el1
  ) !important;
}

.i-amphtml-story-interactive-active:not(.i-amphtml-story-interactive-post-selection)
  .i-amphtml-story-interactive-option:nth-of-type(2)
  .i-amphtml-story-interactive-option-title-text {
  animation-delay: var(
    --i-amphtml-interactive-landing-animation-delay-offset-el2
  ) !important;
}

@keyframes i-amphtml-story-interactive-option-title-text-landing-animation {
  33% {
    transform: scale(0.95);
  }
}
!

JS 

              
                var quiz = document.getElementsByClassName("interactive-component")[0];

var prompt = document.getElementsByClassName("interactive-prompt")[0];

function toggleDark(select) {
  quiz.setAttribute("theme", select.value);
}

function toggleShadow(select) {
  quiz.setAttribute("chip-style", select.value);
}

function toggleAnswered(checkbox) {
  quiz.classList.toggle(
    "i-amphtml-story-interactive-post-selection",
    checkbox.checked
  );
}

function promptChange(select) {
  quiz.setAttribute("prompt-size", select.value);
  prompt.style.height = "0px";
  prompt.style.height = prompt.scrollHeight - 4 + "px";
}

function changeColor(picker) {
  var color = picker.value;
  quiz.style = "--interactive-accent-color: " + color;
}

function updateScale() {
  var largestFontSize = 28;
  const allTitles = Array.from(
    document.getElementsByClassName(
      "i-amphtml-story-interactive-option-title-text"
    )
  );
  allTitles.forEach((e) => {
    const lines = Math.round(
      e.offsetHeight /
        parseFloat(window.getComputedStyle(e)["line-height"].replace("px", ""))
    );
    console.log(e.textContent, e.textContent.length, lines, largestFontSize);
    if (e.value.length <= 3 && largestFontSize >= 28) {
      largestFontSize = 28;
    } else if (lines == 1 && largestFontSize >= 16) {
      largestFontSize = 16;
    } else if (lines == 2) {
      largestFontSize = 14;
    }
  });
  quiz.style.setProperty("--post-select-scale-variable", largestFontSize / 14);
}

updateScale();
!
999px

Console