angular-backtop/src/less/themes/dark.less

.

#backtop.dark {
  bottom: 30px;
  right: 30px;
  &.full-width {
    background: black;
    bottom: 0;
    left: 0;
    width: 100%;
    button {
      width: 100%;
      margin: 0 auto;
      text-align: center;
      padding: 15px 0;
      border-radius: 0;
      border-left: none;
      border-right: none;
    }
  }
  button {
    color: white;
    background: black;
    padding: 10px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    &:hover, &:focus {
      background: #444;
    }
    &:active {
      -webkit-box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.6);
      -moz-box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.6);
      box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.6);
      background: #666;
    }
  }
}