body {
  padding: 0;
  margin: 0;
}

.background-grd-1 {
  background: #606c88;  /* fallback for old browsers */
  background: -webkit-linear-gradient(to right, #3f4c6b, #606c88);  /* Chrome 10-25, Safari 5.1-6 */
  background: linear-gradient(to right, #3f4c6b, #606c88); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}

@media (min-width: 320px) { 
  .main-content {
    width: 90%;
  }
}

@media (min-width: 768px) { 
  .main-content {
    width: 60%;
  }
}