body {
  /*
  background-image: url("../images/gcwall40bland.jpg");  /* r(reg) g(green) b(blue) colors */
  */
  margin-left: 4%;  /* avoid a too-crowded look */
  background-image: linear-gradient(to right, #F0F0F0, #88EE88);
}

h1 {
  font: normal bold 2.25em/2.75em Georgia, serif;
  color: blue;
}

h2 {
  font: normal bold 2.00em/2.50em Georgia, serif;
  color: blue;
}

h3 {
  font: normal bold 1.50em/2.00em Georgia, serif;
  color: darkgreen;
}

#buttons {
   margin-left: 10px;
   float:left;
   width: 50px;
}
input {
   font-size:  1.3em;
   margin-top: 5px;
   margin-bottom: 15px;
   font-family: Arial, sans-serif;
   color: blue;
}

canvas {
   margin-left: 70px;
   padding-right: 150px;
   width: 800px;
   margin-right: 20px;
}

.hide {
  display: none;
}