@import 'bootstrap';

header, footer, main {
  margin-left: auto;
  margin-right: auto;
  max-width: 800px;
  width: 80%;
  margin-top: 1rem;
  margin-bottom: 1rem;
}
header {
  text-align: center;
}
section {
  margin-top: 2rem;
  margin-bottom: 2rem;
}
.card {
  padding: 2rem;
}
.btn-swiping {
  font-size: 2.75rem;
  margin: 0;
  width: 49%;
  padding-left: 0;
  padding-right: 0;
}
h4 {
  text-transform: uppercase;
  font-size: 1rem;
  color: #888;
}
.btn .tag {
  right: -3px;
}
.alert {
  margin-top: 10px;
  margin-bottom: 10px;
}

@import 'bootstrap';

header, footer, main {
  margin-left: auto;
  margin-right: auto;
  max-width: 800px;
  @media screen and (min-width: 768px) {
    width: 80%;
  }
  margin-top: 1rem;
  margin-bottom: 1rem;
}
header {
  text-align: center;
}
section {
  margin-top: 2rem;
  margin-bottom: 2rem;
}
@media screen and (max-width: 767px) {
  header { margin-top: 0; }
}
.card {
  padding: 2rem;
}
.btn-swiping {
  font-size: 2.75rem;
  margin: 0;
  width: 49%;
  padding-left: 0;
  padding-right: 0;
}
h4 {
  text-transform: uppercase;
  font-size: 1rem;
  color: #888;
}
.btn .tag {
  right: -3px;
}
.alert {
  margin-top: 10px;
  margin-bottom: 10px;
}

Remove outer spacing on mobile devices
Remove outer spacing on mobile devices
