@checksub_team/react-widgets/lib/less/button.less

React-widgets

.rw-btn {
  position: relative;
  color: @btn-color;
  display: inline-block;
  text-align: center;
  vertical-align: middle;
  border: 1px solid transparent;
  cursor: pointer;
  outline: none; // these are never individually focusable

  .rw-state-readonly &,
  .rw-state-disabled & {
    cursor: not-allowed;
  }
}

.rw-btn-select {
  .opacity(.75);
  transition: opacity 150ms ease-in;

  &:hover,
  .rw-state-focus &,
  :hover > & {
    .opacity(1);
  }
}

.rw-btn-primary {
  width: 100%;
  white-space: normal;
  line-height: 2em;

  &:hover {
    background-color: @state-bg-hover;
  }
}

.rw-btn-select[disabled],
.rw-btn-primary[disabled],
fieldset[disabled] .rw-btn-select,
fieldset[disabled] .rw-btn-primary, {
  .state-disabled();
  .opacity(.65);
  pointer-events: none;
}