<div class="hero">
  <video autoplay loop src="https://u2act.com/videos/nashville-tl.mp4"></video>
  <header class="grid-overlay"> <h1>Hero Background Video</h1> </header>
</div>

<div class="content-area grid-overlay"></div>

@import "bourbon";
@import url('https://fonts.googleapis.com/css?family=Michroma');
$bgcolor: rgba(179, 27, 27, 0.95);

*, *:before, *:after {
  box-sizing: inherit;
}

* {
  margin: 0;
  padding: 0;
  border: 0 none;
  position: relative;
}

body {
  @include animation(fadeIn 2s ease-in-out);
  font-family: 'Michroma', sans-serif;
  background-color: $bgcolor;
  color: #e3dac9;
}

.hero {
  width: 100%;
  height: 100vh; 
  overflow: hidden;
  
  video {
    object-fit: cover;
    width: 100%;
    height: 100%;
  }
  
  header {
    @include transform( translate(-50%, -50%) );
    position: absolute;
    left: 50%;
    top: 50%;
    width: 100%;
    height: 100%;
    h1 {
      @include transform( scale(1, 2) );
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      height: 100%; 
      font-size: 4rem;
      text-transform: uppercase;
      word-spacing: 1vw;
      letter-spacing: 0.25rem;
    }
  }
}

.content-area {
  min-height: 50vh;
  padding: 3rem 6rem;
  font-size: 28px;
  letter-spacing: 3px;
  line-height: 4rem;
}


.grid-overlay {
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAYAAAEFsT2yAAAACXBIWXMAAAsSAAALEgHS3X78AAAAFElEQVR4nGNhYGBwYIET////ZwAAETIDym2lzEcAAAAASUVORK5CYII=);
  background-size: 2px 2px;
  background-position: 0 0;
  background-repeat: repeat;
}

@include keyframes(fadeIn) {
  from { opacity: 0; }
  to   { opacity: 1; }
}
View Compiled
$(".content-area").append("Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts. Separated they live in Bookmarksgrove right at the coast of the Semantics, a large language ocean. A small river named Duden flows by their place and supplies it with the necessary")

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js