Bootstrap 그리드 시스템
Bootstrap3 Grid http://getbootstrap.com/css/#grid 참조. - .col-xs- : Phone ( < 768px ) - .col-sm- : Tablets ( ≥768px ) - .col-md- : Desktops ( ≥992px ) - .col-lg-...
Bootstrap3 Grid http://getbootstrap.com/css/#grid 참조. - .col-xs- : Phone ( < 768px ) - .col-sm- : Tablets ( ≥768px ) - .col-md- : Desktops ( ≥992px ) - .col-lg-...