nth-child and pseudo elements

Hello, I wanted the “content” for each menu to be different. How do I properly use a child selector to make the first menu and second menu have different images?

Thanks in advance.

I’m sorry. I’m not quite sure how to type it and proper spacing. This is the code I’m using…

.grid .footer-block__heading::after {
content: “+”;
position: absolute;
right: 0;
top: 50%;
transform: translateY(-50%);
width: 20px;
text-align: center;
}
.grid .footer-block__heading:not(.block-collapsed)::after {
content: “-”;
}

I copied this and changed the content but was unsure on the proper placement of the child selector. Would you mind adding it to this code?

If you can walk me through the exact steps of what I should be typing and where, that would be greatly appreciated. I know a little about coding from videos and articles but can’t actually code, only edit existing code for now.

I want the menus to have different ::after “content” to be distinct buttons. Unsure how to specify that element, which from what I understand they are pseudo elements.