how can i change the background color of select element!

Question

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Answer 1

he asking me to programming the game word consist of a map with numbered countries and there is the side of many select element . the user will choose in every time the correct name of contries . if the anser is false , the background of select element will be red else blue

Answer 2

i have problem i dont know how do this look the exercice say to use the balise select in html5 after that the user will take a Anser from.this.select if the anser is true , background of.select will.be blue , else it will.be ref help me plz

Answer 3

if u have a facebook or instagram give me your name and i will give u the imag of exercice