gitlabhq/app/assets/stylesheets/gitlab_bootstrap/buttons.scss

.btn {
  display: inline-block;
  padding: 6px 12px;
  margin-bottom: 0;
  font-size: 13px;
  line-height: $baseLineHeight;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  border: 1px solid #BBB;
  color: $style_color;
  @include border-radius($baseBorderRadius);
  @include box-shadow(inset 0 1px 0 rgba(255,255,255,.2));
  @include linear-gradient(#f1f1f1, #e1e1e1);
  text-shadow: 0 1px 1px #FFF;
  text-decoration: none;

  &.hover,
  &:hover {
    color: $style_color;
    background: #f1f1f1;
    border-color: #AAA;
    text-decoration: none;
    @include linear-gradient(#fAfAfA, #f1f1f1);
  }

  &.focus,
  &:focus {
    text-decoration: none;
    @include box-shadow(inset 0 2px 4px rgba(0,0,0,.15));
  }

  &.active,
  &:active {
    background-image: none;
    outline: 0;
    text-decoration: none;
    @include box-shadow(inset 0 2px 4px rgba(0,0,0,.15));
  }

  &.disabled,
  &[disabled] {
    cursor: default;
    background-image: none;
    @include opacity(65);
    @include box-shadow(none);
  }

  &.btn-primary {
    color: #FFF;
    border-color: #189;
    text-shadow: 0 1px 1px #189;
    @include linear-gradient(#4AC, #289);

    &.hover,
    &:hover,
    &.disabled,
    &[disabled] {
      color: #FFF;
      background: #389;
    }
  }

  &.btn-success {
    color: #FFF;
    border-color: #1A1;
    text-shadow: 0 1px 1px #FFF;
    text-shadow: 0 1px 1px #181;
    @include linear-gradient(#62C452, #51a351);


    &.hover,
    &:hover,
    &.disabled,
    &[disabled] {
      color: #FFF;
      background: #2A2;
    }
  }

  &.btn-danger {
    color: #FFF;
    text-shadow: 0 1px 1px #811;
    border-color: #BD362F;
    @include linear-gradient(#EE5F5B, #BD362F);


    &.hover,
    &:hover,
    &.disabled,
    &[disabled] {
      color: #FFF;
      background: #A22;
    }
  }

  &.btn-new {
    @extend .btn-success;
  }

  &.btn-create {
    @extend .wide;
    @extend .btn-success;
  }

  &.btn-save {
    @extend .wide;
    @extend .btn-primary;
  }

  &.btn-close,
  &.btn-remove {
    @extend .btn-danger;
  }

  &.btn-cancel {
    float: right;
  }

  &.wide {
    padding-left: 20px;
    padding-right: 20px;
  }

  &.btn-small {
    padding: 2px 10px;
    font-size: 12px;
  }

  &.btn-tiny {
    font-size: 11px;
    padding: 2px 6px;
    line-height: 16px;
    margin: 2px;
  }

  &.grouped {
    margin-right: 7px;
    float: left;
  }
}