You may be required to select all <p> elements with specific class 

or other ways using jquery.

Do you know the easiest way to fix your PC file icon size?

WordPress normally not allowing you to add Php codes  to pages and posts, It's where shortcodes comes in. when a shortcode is encountered within post text then any custom php codes can be executed.

1. Windows + A :  In Windiows 10, it will open the action center.

2. Windows + B :  It will select the first icon in Notification area. To switch to other icon, use arrow key.

WordPress has the ability to create child themes so that child theme gets the characteristics of a parent theme. Child theme allows you to use and edit a master theme, save the child theme separately without affecting the parent theme. 

The ORDER BY clause used to sort the sql query results in 

ascending or in descending order

Youtube is the largest and most popular video sharing platform in the world. As Google is the owner of Youtube, you need a Google account to create a Youtube Channel. Probably you already have a google account, if not than create a google account first. Now let's create a Channel.