Background color for separate sections of homepage?

Hi - my website is www.bluutour.com and I'm using the Cacao template. I'd like to change the background color and font for just a small section of that homepage. I'd like to change the font to white and the background to this shade of blue #0f73ba. I'd like to change just the small section of the homepage that includes this text:

"Bluutour is the First of its Kind as a Self-Guided College Campus Walking Tour App

Made by Students for Potential Students"

@tbliston add to Home > Design > Custom CSS

div#block-yui_3_17_2_1_1562857037635_10281 {
   background: #0f73ba;
}
div#block-yui_3_17_2_1_1562857037635_10281 * {
   color: #fff;
}