center element
<link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/bootstrap.min.js"></script> <style> .cssAmount{font-size:2em;} .col-center-block { float: none; display: table; margin: 0 auto; /* margin-left: auto; margin-right: auto; */ } .img-fluid{max-width:100%;height:auto} .rounded{border-radius:.25rem!important}.rounded-top{border-top-left-radius:.25rem!important;border-top-right-radius:.25rem!important} .rounded-right{border-top-right-radius:.25rem!important;border-bottom-right-radius:.25rem!important} .rounded-bottom{border-bottom-right-radius:.25rem!important;border-bottom-left-radius:.25rem!important}. rounded-left{border-top-left-radius:.25rem!important;border-bottom-left-radius:.25rem!important} .rounded-circle{border-radius:50%!important}.rounded-0{border-radius:0...