body,
html {
  background: #303941;
}
img {
  max-width: 100%;
}
a {
  transition: all 0.3s ease-in-out 0s;
  -webkit-transition: all 0.3s ease-in-out 0s;
  -moz-transition: all 0.3s ease-in-out 0s;
  -o-transition: all 0.3s ease-in-out 0s;
  -ms-transition: all 0.3s ease-in-out 0s;
}
a:focus {
  outline: none;
}
.btn {
  transition: all 0.3s ease-in-out 0s;
  -webkit-transition: all 0.3s ease-in-out 0s;
  -moz-transition: all 0.3s ease-in-out 0s;
  -o-transition: all 0.3s ease-in-out 0s;
  -ms-transition: all 0.3s ease-in-out 0s;
}