body {
  font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
  background-color: black;
  color:whitesmoke
}
.responsive {
    width: 100%;
    height: auto;
    border-radius:10px;
  }

.container {
  margin: auto;
  width: 85%;
  padding: 10px;
}

@media screen and (min-width: 900px) {
  .container {
    width: 55%;
  }
}
@media screen and (min-width: 1400px) {
  .container {
    width: 35%;
  }
}