HTML Guide for from
background CSS property has an invalid value; "from" is not recognized as a valid color or background value.
The background property in CSS can accept color names, hex codes, rgb/rgba values, or CSS keywords, but "from" is not valid. Sometimes this error can appear if using incorrect CSS gradient syntax, where "from" is not a recognized value.
Detailed Explanation
In standard HTML and CSS, a background can be set using:
- Hex color codes, such as #fff or #ffffff
- Named colors, such as red or blue
- Functions, such as rgb(255,0,0) or linear-gradient(...)
If you wrote something like:
background: from #fff to #000;
or
background: "from";
neither is valid CSS.
To use gradients, use correct linear-gradient() or radial-gradient() syntax:
background: linear-gradient(to right, #fff, #000);
For a solid color:
background: #fff;
HTML Examples
Incorrect CSS:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Incorrect CSS</title>
<style>
div {
background: from #fff to #000; /* Invalid syntax */
}
</style>
</head>
<body>
<div>Bad background</div>
</body>
</html>
Correct CSS (Gradient):
<!DOCTYPE html>
<html lang="en">
<head>
<title>Correct CSS Gradient</title>
<style>
div {
background: linear-gradient(to right, #fff, #000);
}
</style>
</head>
<body>
<div>Good background</div>
</body>
</html>
Correct CSS (Solid Color):
<!DOCTYPE html>
<html lang="en">
<head>
<title>Correct CSS Color</title>
<style>
div {
background: #fff;
}
</style>
</head>
<body>
<div>White background</div>
</body>
</html>
Always use a valid color value or gradient function for the background property.