Reply To: Changing color in Menu drop down

1. Use:

#menu .sub-menu li a, #menu .children li a {
  background: #E44424;
}

2. Under Appearance > Widgets drag a Text widget to the sidebar and paste in the PayPal code.

3-4. Try:

.metaslider {
  margin: 30px auto !important;
}

5. You’re welcome. :)

https://startupwp.com/topic/customizing-your-theme/