Hover over a link in the Brimstone theme and it will be underlined. How can I edit it?

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Hover over a link in the Brimstone theme and it will be underlined. How can I edit it?
I asked the author, but wrote it because there was no answer.
Thank you if you have anyone who understands.

https://www.concrete5.org/marketplace/themes/brimstone1/support/when...

 
ConcreteOwl replied on at Permalink Best Answer Reply
ConcreteOwl
If you want to make the text underlined on hover in the navigation.
look in the "brimstone/themes/brimstone/css/main.less" file at line 171, you will find this
text-indent: 0px !important;
just add your text-decoration css below that, like this
text-indent: 0px !important;
text-decoration: underline;

Save the file and clear the cache.
dsds replied on at Permalink Reply
thank you for your answer.
Unnecessary links are underlined in that way.
Although the header navigation is unnecessary, it is displayed, and the underline is not displayed for the character link created in the article block in the footer or sidebar.
I want it to be underlined only for text such as article blocks, not for images or header navigation.
Thank you.
Of course, the cache has been deleted.
dsds replied on at Permalink Reply
I want to make the underline appear when the mouse cursor is applied to the link character other than the header navigation.
Can't you?
Thanking you in advance.
dsds replied on at Permalink Reply
I set the following as instructed.
text-indent: 0px! important;
text-decoration: underline;
Only the header navigation text is underlined.
Is there a way to underline other link characters?
Guidance, thank you.
dsds replied on at Permalink Reply
Is there any way to show the underline other than header navigation?
Thank you.