A.<HR> B.<BR> C.<TR> D.<T1>
A.<div class=“row”><br><div class=“col-sm-1”> B.<div class=“col-sm-1”><br><div class=“row”><br> C.<div class=“row”><br><div class=“container”><br><div class=“col-xs-1”><br> D.<div class=“container”><br><div class=“row”><br><div class=“col-xs-1”>
A.show用來顯示一個區(qū)塊 B.hide用來隱藏一個div C.hidden用來隱藏一個div D.text-hide將會隱藏掉文字