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background-image.html
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<!DOCTYPE html>
<html>
<head>
<title>Background Image</title>
<link href="https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;1,300;1,500&display=swap"
rel="stylesheet">
<style>
test {
text-transform: uppercase;
list-style: circle;
text-decoration: line-through;
}
body {
tab-size: 2;
font-size: 20px;
font-family: 'Roboto', sans-serif, Helvetica;
}
#selector-label {
padding: 10px;
font-size: 0.75em;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
background-color: #eee;
margin: 0 0 1em 0;
}
#text-sample {
font-family: Times;
font-size: 16px;
color: #000;
padding: 0px;
}
code {
font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
font-size: 1rem;
color: rgb(41, 103, 5);
}
code .comment {
color: rgb(106, 5, 89)
}
code .selector {
color: rgb(22, 92, 145)
}
.code-zone {
padding: 2em;
background-color: #eee;
}
input,
select {
display: inline-block;
width: 4rem;
text-align: right;
font-size: 1rem;
padding: 0.25rem;
border: 1px solid #aaa;
border-radius: 0.5rem;
}
select {
width: auto
}
textarea {
box-sizing: border-box;
width: 100%;
padding: 0.5em;
border: 1px solid;
border-radius: 5px;
font-size: 1em;
}
.container {
display: flex;
}
.code-zone {
}
.demo {
width: 400px;
height: 400px;
border: 1px solid;
}
.box {
/* width: 50px;
height: 50px; */
padding: 1em;
display: flex;
justify-content: center;
align-items: center;
}
input {
width: 120px;
}
</style>
</head>
<body>
<div class="container">
<div class="demo"></div>
<div class="code-zone">
<pre><code><span class="selector"></span> .demo {
background-color: <input type="color" id="backgroundColor">;
background-image: <select id="backgroundImage">
<option></option>
<option>url(images/cat.png)</option>
<option>url(images/pattern.jpg)</option>
</select>;
background-repeat: <select id="backgroundRepeat">
<option>repeat-x</option>
<option>repeat-y</option>
<option>repeat</option>
<option>no-repeat</option>
</select>;
background-position: <select id="backgroundPosition">
<option>left top</option>
<option>left center</option>
<option>left bottom</option>
<option>right top</option>
<option>right center</option>
<option>right bottom</option>
<option>center top</option>
<option>center</option>
<option>center bottom</option>
</select>;
background-size: <select id="backgroundSize">
<option>auto</option>
<option>cover</option>
<option>contain</option>
<option>40px</option>
<option>100px</option>
<option>50%</option>
<option>100%</option>
</select>;
background-size: <input id="backgroundSize" type="text">
}</code></pre>
<p>
<button id="add-box">Add Box</button>
</p>
<p>
<!-- <label>
<input type="checkbox" id="random-size">
</label> -->
</p>
</div>
</div>
<script>
const demo = document.querySelector('.demo')
const textArea = document.querySelector('#text-area')
const addBox = document.querySelector('#add-box')
const boxesArray = []
addBox.addEventListener('click', (e) => {
const el = document.createElement('div')
el.classList.add('box')
const hue = Math.random() * 360
el.style.backgroundColor = `hsl(${hue}, 100%, 50%)`
demo.appendChild(el)
boxesArray.push(el)
el.innerHTML = boxesArray.length
})
const styleOutput = document.querySelector('#style-output')
const box = document.querySelector('.box')
document.querySelector('body').addEventListener('input', updateStyles)
// document.querySelector('body').addEventListener('change', updateStyles)
function updateStyles(e) {
if (!e.target.matches('input') && !e.target.matches('select')) {
return
}
const unit = e.target.dataset.unit ? e.target.dataset.unit : ''
console.log(unit)
const value = e.target.value
const id = e.target.id
demo.style[id] = value
console.log(demo.style)
console.log(value, id, demo)
if (id === 'lineHeight' && value === '') {
demo.style[id] = 'unset'
}
}
</script>
</body>
</html>