simple-template

// src/components/simple-template/index.hbs

<template id="my-paragraph">
  <style>
    p {
      color: white;
      background-color: #666;
      padding: 5px;
    }
  </style>
  <p>
    <slot name="my-text">My default text</slot>
  </p>
</template>

<my-paragraph>
  <span slot="my-text">Let's have some different text!</span>
</my-paragraph>

<my-paragraph>
  <ul slot="my-text">
    <li>Let's have some different text!</li>
    <li>In a list!</li>
  </ul>
</my-paragraph>