Modifying webpage aesthetics with JavaScript for dynamic background changes

I am struggling to change the background color from white to red using JavaScript. I have included the necessary code but nothing seems to be happening.

.html 
<body>
  <div class="invoice-box">
    <table cellpadding="0" cellspacing="0>
      <tr class="top">
        <td colspan="2">
          <table>
            <tr>
              <td class="title">
                <img src="emoji.png" width="100">
              </td>
.css 
.invoice-box {
  background: white;
  max-width:800px;
  margin:auto;
  padding:30px;
  border:1px solid #eee;
  box-shadow:0 0 10px rgba(0, 0, 0, .15);
  font-size:16px;
  line-height:24px;
  font-family:'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif;
    color:#555;
.js 
document.getElementById("invoice-box").style.background = "red";
javascriptcssbackground-color

Answer №1

Utilize jQuery by following this example:

$('#item').css('background-color', '#ffffff')

Please remember: #ffffff corresponds to the color white.

Answer №2

Instead of using getElementById to fetch html elements by Id, you have used it with the class invoice-box. Make sure to define the element as an id as well.

<body>
<div class="invoice-box" id="invoice-box">
    <table cellpadding="0" cellspacing="0">
        <tr class="top">
            <td colspan="2">
                <table>
                    <tr>
                        <td class="title">
                            <img src="emoji.png" width="100">
                        </td>

Answer №3

document.querySelector(".receipt-container").style.background = "blue";

Have you considered trying out querySelector instead?

Answer №4

When working with JavaScript, it's recommended to utilize IDs instead of classes when selecting elements.

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