Review demo

Write a function named changebg that has ONE input parameter -- the color you want to change to.
Call it off the button, passing in the value from the box.

Write a function called emailcheck that has ONE input parameter -- the email domain the user provided.
In the function, set up a msg variable with a default message, and then output the message through an alert... like:
```
let msg = "hello person from " + domain
alert(msg)
```
Then between those two lines (the msg set up and the alert) write some conditional clauses that changes the message if they provided a specific domain such as usc.edu or ucla.edu or google.com....
Call the function off the textbox, on change, and pass in this.value to the function.

Using Javascript, write an event for mouseover bind off "a" that changes the font-size and color of the link. Use the "this" object.
Then also in Javascript bind mouseout for the same link that sets the font-size and color back to "normal".
Then using jQuery target ALL links and write two bind routines that use "this" to make the same css changes.
Is there a way we couuld have "stored" the original size and color for later re-use? Perhaps in a global variable?