html, body {
  margin: 0;
  padding: 0;
}

body{
  background:linear-gradient(to top, #E5FFF7 ,rgb(93, 167, 63));    
  height:100vh;
}

canvas {
  display: block;
  margin: auto;
  margin-top: 50px;
  box-shadow: 20px 20px 20px rgba(0, 0, 0, 0.9);
  border-radius: 30px;
}

.nav-item{
  margin-left: 10px;
}

@media ( max-width: 900px ) {
  canvas{
    width: 350px !important;
    height:150px !important;
  }
 
}