By examining the website through your browser's developer tools, you will notice a clever technique used to create diagonal lines on the page. An empty div is included and positioned to cover 100% width and height of its container. It is then absolutely positioned with a higher z-index than the video container. The effect is achieved using a tile-able background image placed within the div with a class name of mk-section-mask
. Here is the CSS applied to that class:
.mk-section-mask {
background: url(../../images/video-mask.png) center center repeat;
position: absolute;
top: 0;
left: 0;
z-index: 3;
width: 100%;
height: 100%;
}
The background image used, video-mask. png, features a 4px square design with a diagonal line pattern. You can view it here.
I hope this explanation clarifies things for you.
Best regards,
Dan