html {
  height: 100%;
}
* { /* sets the overall margin and padding to zero, default at 20px. necessary for footer to span entire width */
    margin: 0;
    padding: 0;
    height: 100%;
  }  

.Segue {
    position: absolute;
    left: 30px;
    top: 50%;
    bottom: 50%;
}

.textBody {
    position: absolute;
    left: 50%;
    top: 30%;
}

#NPB {
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-right: 10px solid transparent;
    border-left: 10px solid black;
    background: transparent;
  }

#NPB:hover {
    border-left: 10px solid grey;
  }