Hey there,
My ISP won’t let me visit your site, they state you have malicious content. You can see the error here:
https://monosnap.com/image/jTZPRLv59ORMEOfD1SXTTEStzT9qUe
Not sure if you’re targeting the UK but Virgin Media are a pretty large provider here so that’s potentially a good chunk of people not able to see your site. This could happen if your site has been hacked and something dodgy uploaded.
Sucuri also have you listed:
https://sitecheck.sucuri.net/results/www.entertolearn.com
https://monosnap.com/image/Y0EM5QhMdRTra0H5cFwPsXm6TOUMov
Anyway, I went through a proxy and could see the site. You could use this CSS:
#content .entry { line-height: 25px; }
You can alter the px as desired. There is a chance that the theme has a CSS field in the options, if not then you can make a child theme:
https://codex.www.ads-software.com/Child_Themes
https://premium.wpmudev.org/blog/create-wordpress-child-theme/
Or you can instead use a plugin if you like:
https://www.ads-software.com/plugins/imporved-simpler-css/screenshots/
Have a fantastic day! ??
