thanks for your good application .but I have a question :can we make a vertical line in HTML?if your answer is yes say how.

Answer 1

We make vertical line mostly by using border-left or border-right.
You can make everything if you know how, see some my codes.
Also you can make good hover effect by adding just one border with color. Ex. For navigation add
.nav:hover {
border-bottom:2px solid yellow;
}