Coloring the Background of the Active Textbox Object

There is an Excel file that teaches how to perform the Coloring the Active Textbox Background operation.

Excel Source: Coloring the Background of the Active Textbox Object

This design, which visually highlights the active text box on a form, strengthens user-oriented interfaces significantly. Also, it makes it extremely easy to notice which box is active during data entry sessions. Because, the form filling experience is made much smoother thanks to the colored highlighting method. Thus, error margin is minimized by preventing users from confusing the sequence of operations. Therefore, this document is a stylish solution for those designing professional web or form interfaces.

Hope it is useful.