Hi there. ??
As a first note: Please do not edit your theme’s style.css file directly. Any changes that you make there will be lost when it comes times to update your theme.
Instead, to add custom CSS, firstly set up a child theme or activate a custom CSS plugin. If you have Jetpack installed then you can activate its custom CSS module.
Enter the following snippet in either the editor for your CSS plugin or the style.css file of your child theme:
.widget-area {
background: #32CD32;
color: #FFF;
}
The above will change the background of the widget area to a green shade (#32CD32) and then set the colour of the main text to white (#FFF).
You can switch those values with any HEX code of your choice. If you’d like to experiment with different colours, try a few Google searches to get a list of HEX codes and their corresponding values. Here’s an example of a site that I’ve used before:
https://www.color-hex.com/
You can also change the colour of the links in the widget area using the following:
.widget-area a {
color: #FFF;
}
Let me know how you get on with that or if you have any extra questions.