Can you help me with js😇🥺

Question

//Make all <li> elements blue(pick your own hexadecimal blue)

//Change the background on every paragraph to be yellow

//Make all inputs have a 3px red border

//Make only inputs with type 'text' have a gray background

//Give both <p>'s inside the 3rd <div> a pink background

//Give the 2nd <p> inside the 3rd <div> a 5px white border

//Make the <em> in the 3rd <div> element white and 20px font(font-size:20px)

Answer 1

1.
let liColor=
document.getElementsByTagName("li");

for (i = 0; i < liColor.length; i++) {
liColor[i].style.color = "blue";
}

Answer 2

2.
let pColor=
document.getElementsByTagName("p");

for (i = 0; i < pColor.length; i++) {
pColor[i].style.backgroundColor = "yellow";
}

Answer 3

I hope you understand it and I recommend you to study DOM