<!DOCTYPE html>
<html>
<head>
<title>Change Color</title>
<style>
#app {
border: dashed black 1px;
width: 350px;
padding: 0 20px;
}
#app > div {
width: 200px;
height: 80px;
}
#app span {
font-weight: bold;
font-family: 'Courier New', Courier, monospace;
}
</style>
</head>
<body>
<h1>Example: Change Color</h1>
<div id="app">
<p>Move the mouse pointer over the box below to change the background-color randomly with hsl color code.</p>
<div v-on:mousemove=" colorVal = Math.floor(Math.random()*360) " v-bind:style=" {backgroundColor: 'hsl('+colorVal+',60%,60%)'} "></div>
<p><span>backgroundColor: hsl(<strong>{{ colorVal }}</strong>, 80%, 80%)</span></p>
<p>To understand how to set a color in CSS with 'hsl()' see <a href="/css/css_colors_hsl.asp" target="_blank">our page about this</a>.</p>
</div>
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
const app = Vue.createApp({
data() {
return {
colorVal: 50
}
}
})
app.mount('#app')
</script>