overtake??. How to specify (the color before and after the link)_html/css_WEB-ITnose

I saw this article that teaches how to 'single designate'
http://mail.mcjh.kl.edu.tw/~lin/teach/htm/linkline.htm

Original CSS The meaning is as follows
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A:link {color: blue} General link: {Color: blue}
A: visited {color: gray} Visited links: {color: gray}
A:active {color: green} Links being executed: {color: green}
A:hover {color: red} When sliding Move the mouse over the link: ｛Color: red｝
A{text-decoration: none} Hyperlink without underlining
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↑
This method is full page, I only want [single] to achieve
A: visited {color: gray} Visited links: {Color: gray}
How can I change it?

<a style="text-decoration:none;     VS的智能感知找老半天没看到相关的 T.T     " href="http://ABC.aspx" target="_blank"> Forgot your password?</a>

Reply to discussion (solution)

Because of my entire project, Only this link should do this. ． ．

So I don’t want to declare a css in the shared CSS file

(because for this reason, it feels bad to load all the function pages)
2. I don’t want to do that again. The top of the page declares