title: What does the colon represent inside a VueJS/Vuetify/HTML component tag
body: <p>I am using Vuetify, so this could be either a VueJS, Vuetify or even HTML question, but my component looks like this : </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;v-list-tile 
    v-for="item in menuItem.items" 
    :key="item.type" 
    :style="`background: ${item.colour}`" 
    :html="item.type"&gt;
  &lt;/v-list-tile&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>Take the <code>:key</code> for example, what does the colon (<code>:</code>) before the word <code>key</code> mean? And where can I find what values I can use ?</p>