main.css

body {
  margin: 0px;
  background: #000;
}

#bg_container {
  opacity: 1;
  height: 100%;
  overflow:auto;
  clip-path: polygon(0 15%, 100% 15%, 100% 75%, 75% 75%, 75% 88%, 57% 75%, 0% 75%);
  position:static;
}

#bg {
  width: 100%;
  height: 900px;
}

#title {
  position: absolute;
  top: 0px;
  padding: 0px;
  color: sienna;
  text-shadow: #000 0px 0px;
  z-index: 1;
  font-family: 'Patrick Hand SC', cursive;
  font-size: 90px;
  top: 30%;
  left: 38%;
  background: rgba(0,0,0,.6);
  background-blend-mode: darken;
  padding-right: 20px;
  padding-left: 20px;
  padding-top: 10px;
  padding-bottom: 10px;
}

#subtitle {
  position:absolute;
  padding: 0px;
  color: sienna;
  z-index: 1;
  font-family: 'Open Sans', sans-serif;
  font-size: 40px;
  left: 25%;
  top: 22%;
  background: rgba(0,0,0,.66);
}