This is my first time to post a question. My question should be a best following to the answer below, but I cannot comment it because it requires 50 reputations (which I have only 1 as a newbie). https://graphicdesign.stackexchange.com/a/19828/58120
This regards to how to highlight text with background color in Illustrator. My question is exactly as what @MartinBlick asked. By following @SOIA's instruction, I can successfully make the appearance e.g. black text in yellow background. But when apply the Graphic Style to a new text object, it becomes a yellow block (without showing the text). I think the trick is the "Move new fill below characters" in @SOIA's instruction, because when I clicked back the style of my first successful stance, the new fill becomes above characters again. It seems that the relative position of Fill and Character is not properly saved. Please correct me if I understand this wrongly.