body {
  width: 100vw;
  height: 100vh;
  /**
 * Subtle stripes
 */

background: #58a;
background-image: repeating-linear-gradient(30deg, 
              hsla(0,0%,100%,.1), hsla(0,0%,100%,.1) 15px,
              transparent 0, transparent 30px);

height: 100vh;
}