<!DOCTYPE html>
<html>
<head>
<title>Opacity with v-bind</title>
<style>
#app > div {
position: relative;
border: dashed black 1px;
width: 200px;
height: 100px;
background-image: url("img_kangaroo.jpg");
background-size: cover;
}
#onTop {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
padding: 20px;
box-sizing: border-box;
z-index: 2;
color: white;
}
</style>
</head>
<body>
<h1>Example: In-line styling</h1>
<p>This is an example of in-line styling with Vue (v-bind:style).</p>
<p>Drag the range input to change the opacity of the div below.</p>
<div id="app">
<p>
<input type="range" min="0" max="1" step="0.1" v-model="opacityVal"> {{opacityVal}} (opacity value)
</p>
<div>
<div id="onTop" v-bind:style="{ backgroundColor: 'rgba(99,0,89,'+opacityVal+')' }">
Drag the range input to change opacity here.
</div>
</div>
</div>
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
const app = Vue.createApp({