How to make a hex border with css?

Question

css

How to make a hex border with css? When pointing at the car, a border should appear, it is necessary through the CSS, the customer is not satisfied with the picture prntscr.com/a140q5

Answer 1

made with 2 divs, which have one hexagon of the desired color, and the other white color which is smaller. Through z-index we put our picture on top, thus we get a border. You can see the detailed css and html code at the link demo6.epiales.net/7

Answer 2

habrahabr.ru/post/126207

Answer 3

something like this
codepen.io/anon/pen/dGQLVX