做项目时，有时也会参考别的案例的优秀之处。在用Bootstrap的时候，发现很多项目代码都有区别，在<div>布局class上，有用.span*，有用.col-md-*，实际上是Bootstrap版本升级，语法也变了。
列出两者的区别，Bootstrap3.x现在是支持移动端优先，这是显著的变化。
Bootstrap3中被修改的样式
| Bootstrap 2.x | Bootstrap 3.x |
|---|
.container-fluid |
.container |
.row-fluid |
.row |
.span* |
.col-md-* |
.offset* |
.col-md-offset-* |
.brand |
.navbar-brand |
.nav-collapse |
.navbar-collapse |
.nav-toggle |
.navbar-toggle |
.btn-navbar |
.navbar-btn |
.hero-unit |
.jumbotron |
.icon-* |
.glyphicon .glyphicon-* |
.btn |
.btn .btn-default |
.btn-mini |
.btn-xs |
.btn-small |
.btn-sm |
.btn-large |
.btn-lg |
.alert-error |
.alert-danger |
.visible-phone |
.visible-xs |
.visible-tablet |
.visible-sm |
.visible-desktop |
分成了 .visible-md .visible-lg |
.hidden-phone |
.hidden-xs |
.hidden-tablet |
.hidden-sm |
.hidden-desktop |
分成了 .hidden-md .hidden-lg |
.input-small |
.input-sm |
.input-large |
.input-lg |
.control-group |
.form-group |
.checkbox.inline .radio.inline |
.checkbox-inline .radio-inline |
.input-prepend .input-append |
.input-group |
.add-on |
.input-group-addon |
.img-polaroid |
.img-thumbnail |
ul.unstyled |
.list-unstyled |
ul.inline |
.list-inline |
.muted |
.text-muted |
.label |
.label .label-default |
.label-important |
.label-danger |
.text-error |
.text-danger |
.table .error |
.table .danger |
.bar |
.progress-bar |
.bar-* |
.progress-bar-* |
.accordion |
.panel-group |
.accordion-group |
.panel .panel-default |
.accordion-heading |
.panel-heading |
.accordion-body |
.panel-collapse |
.accordion-inner |
.panel-body |
Bootstrap3.x中新增的样式
| 页面元素 | 描述 |
|---|
| Panels |
.panel .panel-default .panel-body .panel-title .panel-heading.panel-footer.panel-collapse |
| List groups |
.list-group .list-group-item .list-group-item-text.list-group-item-heading |
| Glyphicons |
.glyphicon |
| Jumbotron |
.jumbotron |
| Extra small grid (<768px) |
.col-xs-* |
| Small grid (≥768px) |
.col-sm-* |
| Medium grid (≥992px) |
.col-md-* |
| Large grid (≥1200px) |
.col-lg-* |
| Responsive utility classes (≥1200px) |
.visible-lg .hidden-lg |
| Offsets |
.col-sm-offset-* .col-md-offset-* .col-lg-offset-* |
| Push |
.col-sm-push-* .col-md-push-* .col-lg-push-* |
| Pull |
.col-sm-pull-* .col-md-pull-* .col-lg-pull-* |
| Input groups |
.input-group .input-group-addon .input-group-btn |
| Form controls |
.form-control .form-group |
| Button group sizes |
.btn-group-xs .btn-group-sm .btn-group-lg |
| Navbar text |
.navbar-text |
| Navbar header |
.navbar-header |
| Justified tabs / pills |
.nav-justified |
| Responsive images |
.img-responsive |
| Contextual table rows |
.success .danger .warning .active |
| Contextual panels |
.panel-success .panel-danger .panel-warning .panel-info |
| Modal |
.modal-dialog .modal-content |
| Thumbnail image |
.img-thumbnail |
| Well sizes |
.well-sm .well-lg |
| Alert links |
.alert-link |
Bootstrap3.x中被移除的样式
| 页面元素 | 从2.x版本中去除 | 3.x版本中对应的元素 |
|---|
| Form actions |
.form-actions |
N/A |
| Search form |
.form-search |
N/A |
| Form group with info |
.control-group.info |
N/A |
| Fluid container |
.container-fluid |
.container (不再进行固定) |
| Fluid row |
.row-fluid |
.row (不再进行固定) |
| Controls wrapper |
.controls |
N/A |
| Controls row |
.controls-row |
.row 或者.form-group |
| Navbar inner |
.navbar-inner |
N/A |
| Navbar vertical dividers |
.navbar .divider-vertical |
N/A |
| |
|
|
| Dropdown submenu |
.dropdown-submenu |
N/A |
| Tab alignments |
.tabs-left .tabs-right.tabs-below |
N/A |
| Nav lists |
.nav-list .nav-header |
没有直接对等的样式t, 但是和List groups 和 .panel-groups相似 |