add style to element javascript code example
Example 1: add style javascript
// Bad:
element.setAttribute("style", "background-color: red;");
// Good:
element.style.backgroundColor = "red";
Example 2: javascript change attribute
var element = document.getElementById("elemId");
element.setAttribute("attributeName", "value");
Example 3: how to change style of an element using javascript
<html>
<body>
<p id="p2">Hello World!</p>
<script>
document.getElementById("p2").style.color = "blue";
</script>
<p>The paragraph above was changed by a script.</p>
</body>
</html>
Example 4: adding styling to element using javascript
var elem = document.querySelector('#some-element');
// Set color to purple
elem.style.color = 'purple';
// Set the background color to a light gray
elem.style.backgroundColor = '#e5e5e5';
// Set the height to 150px
elem.style.height = '150px';
Example 5: javascript style an element
// Getting the element first
var myElement = document.querySelector("#myElement");
// examples for updating styles
myElement.style.color = "blue";
myElement.style.backgroundColor = "red";
Example 6: 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;