borders width style radius color

<!-- boarders: for boders we need to specify border:widthpx color
typeofborder (you can see the border style list from w3schools website)
these three are mandatory attributes and can be specified seperately as
border-width: 5px;
border-color: black; (deafult border color is black and you can go click
wise for specifying different color)
border-style: solid; (border-style: top right bottom left);
)
border-radius: if the radius of border is half of the width then it
would become circle
Borders add the the widh of the div pixel so now the width and height of
each div is 110 pixel.  -->