Class description. The Pull-left element floats to the left. The Pull-right element floats to the right. Center-block the set element is Display:block and centered. Clearfix clear float. Show enforces element display. Hidde N forces the element to be hidden. Sr-only hides elements on other devices except screen readers. Sr-only-focusable is used in conjunction with the. Sr-only class to display when the element gets focus (for example, a user with a keyboard operation). Text-hide Replaces the text content contained in a page element with a background map. Close Displays the Close button. Caret display drop-down function
drop-down list
<body> <div class= "container" >
Clear floating
<div class= "Clearfix" style= "background: #D8D8D8; border:1px solid #000;p adding:10px;" > <div class= "Pull-left" style= "background: #58D3F7;" > left fast floating </div> <div class= "pull-right" style= "background: #DA81F5;" > Right fast floating </div></div>
Auxiliary class of Bootstrap