Why Am I Getting the 'Error: CSS: background: / is an Incorrect Operator' Message?

Understanding the "Error: CSS: background: / is an Incorrect Operator" Message

When attempting to style an element with a background image, you may encounter the error "Error: CSS: background: / is an incorrect operator." To resolve this error, let's explore the correct usage of the 'background' property.

Understanding the 'background' Property

The 'background' property in CSS allows us to set the background of an element using multiple values, including the image URL, position, size, and repeat options. It takes on the following general syntax:

background: <background-image> <background-position> <background-size> <background-repeat> <background-attachment>;

The Issue: Incorrect Operator

In your HTML code, you used the '/' character after specifying the background image URL. According to the CSS specification, the '/' is used to separate the background-position and background-size values. However, you've incorrectly placed the '/' between the background-image URL and background-position.

Correct Syntax

The correct syntax to set the background of your element with an image, position it at 100% and 0, and set the size to 4% would be:

background: url(...) 100% 0/4% no-repeat;

In this code:

• 'url(...)' specifies the image URL.
• '100% 0' specifies the position of the image at 100% on the x-axis (horizontal) and 0 on the y-axis (vertical).
• '4%' specifies the size of the image as 4% of its original size.
• 'no-repeat' ensures that the image is not repeated.

By using this corrected syntax, you'll resolve the error and correctly display the background image on your element.

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