Hello 👋 Isabela, For responsiveness, you could do something like this...
h1{
color : blue;
}
@media {max-width : 768px} {
h1{
color : red;
}
}
this code says that the color of h1 is blue but when the size of screen is below or at 768px the color of h1 is red.
like h1, you can change the property of any element at certain width...this is called responsiveness. Remember to use relative units like rem And avoid using px.
Hope it helps ☺️