How to implement the wireframe function

[wtchaos]

Hello
Could you tell me how to implement the wireframe function, it's very cool.
Thanks a lot!

[wtchaos]

.wireFrame *{
fill: none;
stroke: #000;
stroke-width: 1px;
stroke-opacity: 1.0;
stroke-dasharray: 0;
opacity: 1;
pointer-events: stroke;
vector-effect: non-scaling-stroke;
filter: none;
}
I get it