Final answer:
In order to add a background picture in CSS, use the background image property and provide the path to the image file. The background-image property provides a foundational framework.
Step-by-step explanation:
In CSS, incorporating a background picture is achieved through the utilization of the background-image property.
Ensure the image file resides in the same directory as your CSS file or accurately specify the path to the image.
The background-image property provides a foundational framework for integrating visual elements into the background of your webpage.
To refine and tailor the appearance, additional properties such as background-repeat, background-position, and background-size can be employed.
These supplementary properties empower you to control aspects like image repetition, positioning within the viewport, and overall size, allowing for a nuanced and visually appealing background design in accordance with your styling preferences.