JSFiddle - React, Tailwind, and code Playground

by devdev

HTML

<script src="https://unpkg.com/vue@latest/dist/vue.js"></script>
<div id="editor">
  <textarea v-model="input"></textarea>
  <div v-text="uppercase"></div>
</div>

CSS

html, body, #editor {
  margin: 0;
  height: 100%;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  color: #333;
}

textarea, #editor div {
  display: inline-block;
  width: 49%;
  height: 100%;
  vertical-align: top;
  box-sizing: border-box;
  padding: 0 20px;
}

textarea {
  border: none;
  border-right: 1px solid #ccc;
  resize: none;
  outline: none;
  background-color: #f6f6f6;
  font-size: 14px;
  font-family: 'Monaco', courier, monospace;
  padding: 20px;
}

code {
  color: #f66;
}

JavaScript

new Vue({
  el: '#editor',
  data: {
    input: 'hello'
  },
  computed: {
    uppercase: function () {
      return this.input.toUpperCase()
    }
  },
})