"model popup"
Bootstrap 4.1.1 Snippet by Luke-Richter

<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <a class="btn btn-primary slide_right" href="#" role="button">Link: Slide Right</a> <button class="btn btn-primary slide_left" type="submit">Button: Slide Left</button> </div> <div class="row"> <a class="btn btn-primary slide_right_alt" href="#" role="button">Link: Slide Right</a> <button class="btn btn-primary slide_left_alt" type="submit">Button: Slide Left</button> </div> <div class="row"> <a class="btn btn-primary slide_top" href="#" role="button">Link: Slide Down</a> <button class="btn btn-primary slide_bottom" type="submit">Button: Slide Up</button> </div> <div class="row"> <a class="btn btn-primary slide_top_alt" href="#" role="button">Link: Slide Down</a> <button class="btn btn-primary slide_bottom_alt" type="submit">Button: Slide Up</button> </div> </div>
.btn { margin:.5rem; /* for this demo */ } /* slide to right */ .slide_right { border:none; background-position: right; background: linear-gradient(to right, #00356f 50%,#007bff 50%) no-repeat scroll right bottom / 210% 100% #007bff; -webkit-transition: all 200ms ease; -moz-transition: all 200ms ease; transition: all 200ms ease; } .slide_right:hover, .slide_right.active { background-position: left; color: #ffffff; } /* slide to right alt colors */ .slide_right_alt { border:none; background-position: right; background: linear-gradient(to right, #007bff 50%,#00356f 50%) no-repeat scroll right bottom / 210% 100% #007bff; -webkit-transition: all 200ms ease; -moz-transition: all 200ms ease; transition: all 200ms ease; } .slide_right_alt:hover, .slide_right_alt.active { background-position: left; color: #ffffff; } /* slide to left */ .slide_left { border:none; background-position: left; background: linear-gradient(to left, #00356f 50%,#007bff 50%) no-repeat scroll left bottom / 210% 100% #007bff; -webkit-transition: all 200ms ease; -moz-transition: all 200ms ease; transition: all 200ms ease; } .slide_left:hover, .slide_left.active { background-position: right; color: #ffffff; } /* slide to left alt colors */ .slide_left_alt { border:none; background-position: left; background: linear-gradient(to left, #007bff 50%,#00356f 50%) no-repeat scroll left bottom / 210% 100% #007bff; -webkit-transition: all 200ms ease; -moz-transition: all 200ms ease; transition: all 200ms ease; } .slide_left_alt:hover, .slide_left_alt.active { background-position: right; color: #ffffff; } /* slide down */ .slide_top { border:none; background-position: bottom; background: linear-gradient(to bottom, #00356f 50%,#007bff 50%) no-repeat scroll bottom right / 100% 210% #007bff; -webkit-transition: all 200ms ease; -moz-transition: all 200ms ease; transition: all 200ms ease; } .slide_top:hover, .slide_top.active { background-position: top; color: #ffffff; } /* slide down alt colors */ .slide_top_alt { border:none; background-position: bottom; background: linear-gradient(to bottom, #007bff 50%,#00356f 50%) no-repeat scroll bottom right / 100% 210% #007bff; transition: all 200ms ease; } .slide_top_alt:hover, .slide_top_alt.active { background-position: top; color: #ffffff; } /* slide up */ .slide_bottom { border:none; background-position: top; background: linear-gradient(to top, #00356f 50%,#007bff 50%) no-repeat scroll top right / 100% 210% #007bff; -webkit-transition: all 200ms ease; -moz-transition: all 200ms ease; transition: all 200ms ease; } .slide_bottom:hover, .slide_bottom.active { background-position: bottom; color: #ffffff; } /* slide up alt colors */ .slide_bottom_alt { border:none; background-position: top; background: linear-gradient(to top, #007bff 50%,#00356f 50%) no-repeat scroll top right / 100% 210% #007bff; -webkit-transition: all 200ms ease; -moz-transition: all 200ms ease; transition: all 200ms ease; } .slide_bottom_alt:hover, .slide_bottom_alt.active { background-position: bottom; color: #ffffff; }

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