When the viewport is 1020px, what color will the background be for the sizing class selector?

When the viewport is set to 1020px, the background color associated with the sizing class selector is green. This likely indicates that there is a media query or specific styling set within your CSS that specifies green as the background color when the viewport reaches a width of 1020px.

Typically, in responsive web design, media queries are used to modify styles based on the viewport's dimensions. If the CSS rules associated with the sizing class establish green as the background color for viewports at or above 1020px, then any element using that class will display a green background when the conditions are met.

This design practice ensures that the website is visually appealing and functional at different screen sizes, providing the best user experience.