Regarding the highlighted time for the lines connecting the nodes in the graph view

Good morning. My first interaction on the forum. If this isn’t the right place, I apologize in advance.
In my use of Obsidian, I love working with the graph view to brainstorm new ideas from connections. I think the graph view extremely useful and essential. It’s what made me switch from other apps to Obsidian. My question is: is it possible to create a .css snippet so that when the user hovers over the nodes, the highlight of the line representing the links between notes/nodes takes longer to disappear? Currently, when I hover over the nodes, there’s a highlight, but it disappears very quickly; if the highlight lasted for about 10, 15 seconds and/or disappeared when the mouse cursor moved to another node, it would help me a lot.

Thank you for your attention!
P.S. I’ve heard of .css but I don’t know how to write these codes.