after searching for a while I couldn’t figure out how to solve this issue:

I have a client’s website, say: client.com, which I am hosting as part of the company’s website, company.com.

Client.com is currently permanently redirected to company.com.

I installed a wordpress site on company.com/client, and want client.com to point to the /client subdirectory, but keep client.com in the URL.

I was able to do this, but when I click one of the links on the client’s website, like “About Us,” it shows the new page, but stays at client.com instead of client.com/aboutus.

How can I make this happen? As in, how can I make the URL dynamic?

In the root directory of company.com I have the following .htaccess:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www.)?client.com/$
RewriteRule ^(.*)$ /client%{REQUEST_URI} [NC,L]
RewriteRule ^((?!client).*) /client%{REQUEST_URI} [L,NC]

In the /client directory I have just the WP installed .htaccess:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Read more here: Redirecting a New Domain to Existing Subdirectory with WP Installation