_buttons.less

.button(@btn-color: @brand-primary, @text-color: @light) {
  border: 1px solid darken(@btn-color, 13%);
  border-top-color: darken(@btn-color, 7%);
  border-left-color: darken(@btn-color, 7%);
  padding: 4px 12px;
  color: @text-color;
  display: inline-block;
  font-size: 11px;
  font-weight: bold;
  text-decoration: none;
  text-shadow: 0 1px rgba(0,0,0, .75);
  cursor: pointer;
  margin-bottom: 20px;
  line-height: 21px;
  .transition();
  .border-radius(4px);
  .css-gradient(@btn-color,darken(@btn-color, 5%));

  &:hover, &:focus {
    color: @text-color;
    border: 1px solid darken(@btn-color, 13%);
    border-top-color: darken(@btn-color, 20%);
    border-left-color: darken(@btn-color, 20%);
    .css-gradient(darken(@btn-color, 5%),darken(@btn-color, 10%));
  }
  
  &:active {
    text-shadow: 0 1px 0 darken(@text-color, 90%);
  } 
}

.button, .button:visited {
  .button();
  &.success {
    .button(@brand-success);
  }
  &.warning {
    .button(@brand-warning);
  }
  &.danger {
    .button(@brand-danger);
  }
  &.info {
    .button(@brand-info);
  }
}