style javascript css code example

Example 1: add style javascript

// Bad:
element.setAttribute("style", "background-color: red;");
// Good:
element.style.backgroundColor = "red";

Example 2: how to give css style in javascript

document.getElementById("myH1").style.color = "red";

Example 3: js style

const title = document.querySelector('h1')

//title.setAttribute('style', 'margin: 50px');

console.log(title.style); // Show all style propertyes
console.log(title.style.color); // Log a color in console

title.style.margin = '50px'; // Set a margin of title
title.style.color='crimson'; // Set a color of title
title.style.fontSize = '60px'; // Set font size of title

Example 4: html css javascript

<!-- Answer to: "html css javascript" -->

<!--
  To keep things simple:
  HTML provides the basic structure of sites, which is enhanced and
  modified by other technologies like CSS and JavaScript. CSS
  is used to control presentation, formatting, and layout.
  JavaScript is used to control the behavior of different elements.
-->

For example:
<!--HTML-->
<div id="me">Click me!</div>
<!--CSS-->
<style>
  div {
    height: 128px; /* Makes the div 128px in height */
    width: 128px; /* Makes the div 128px in width */
    background: red; /* Makes the div's background, red */
  }
</style>
<!--JS-->
<script>
  document.getElementById("me".addEventListener("click", function(){
      document.getElementById("me").style.background = 'blue';
  });
</script>
<!-- If you want to test the code above, go to:https://www.w3schools.com/code/tryit.asp?filename=GDZ0PJDLYQ1V -->

<!--
  For more information, go to:
  https://blog.hubspot.com/marketing/web-design-html-css-javascript
-->

Example 5: javascript style

// background-color
<element>.style.backgroundColor = '#000';
// background
<element>.style.background = '#000';
// color
<element>.style.color = '#fff';
// box-sizing
<element>.style.boxSizing = 'border-box';
// font-family
<element>.style.fontFamily = '\'Times New Roman\', Times, serif';
// font-size
<element>.style.fontSize = '16px';
// margin
<element>.style.margin = 0;
// padding
<element>.style.padding = '20px';
// width
<element>.style.width = '100%';
// height
<element>.style.height = '100%';
// margin-left
<element>.style.marginLeft = 0;
// font-weight
<element>.style.fontWeight = 400;

Example 6: js add css style to element

// Create our stylesheet
var style = document.createElement('style');
style.innerHTML =
	'.some-element {' +
		'color: purple;' +
		'background-color: #e5e5e5;' +
		'height: 150px;' +
	'}';

// Get the first script tag
var ref = document.querySelector('script');

// Insert our new styles before the first script tag
ref.parentNode.insertBefore(style, ref);