body, body.lighter {
  background: linear-gradient(124deg, #660e00, #5f0a0a, #5f4a0a, #5d5f0a, #0a5f18, #0a5a5f, #100a5f, #580061);
  background-size: 1800% 1800%;
  -webkit-animation: rainbow 18s ease infinite;
  -z-animation: rainbow 18s ease infinite;
  -o-animation: rainbow 18s ease infinite;
  animation: rainbow 18s ease infinite;
}

.column > .scrollable, .tabs-bar__wrapper, .simple_form input, .search__input {
  background: rgba(16, 16, 16, 0.5) !important;
}

.column-header {
  background: rgba(16, 16, 16, 0.4);
}

.column-header__button {
  background: none;
}

@-webkit-keyframes rainbow {
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}
@-moz-keyframes rainbow {
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}
@-o-keyframes rainbow {
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}
@keyframes rainbow {
    0%{background-position:0% 82%}
    50%{background-position:100% 19%}
    100%{background-position:0% 82%}
}