Answer:
Google it, I can't send links, but the brainly faq link should show up
HTML isn't really used for this anymore, it's done via CSS (Cascading Style Sheets). On the web currently, HTML pretty much just describes what to be displayed, CSS describes how it's to be displayed and JavaScript is used to provide function to a web page.
In HTML, you could use: align="center" as an attribute of the img tag to center it. Now it's preferable to use text-align: center CSS for the object containing the image (a div or p).
Positioning things on top of each other brings in z-axis and position CSS. Check out the CSS tutorial at http://www.w3schools.com . It's free.
You can place an insertion point by clicking in the field or by clicking F2 keyboard shortcut. Insertion point is usually characterized by a blinking vertical line that allows you to insert a next character that you wanted.
Virus such as a Trojan or Worm, and can cause network crashes.