.mainwrap{width:100%}.div-center,.mainwrap{position:absolute;top:0;bottom:0}.div-center{width:400px;height:400px;background-color:#111;left:0;right:0;margin:auto;max-width:100%;max-height:100%;overflow:auto;padding:1em 2em;border-bottom:2px solid #460677;display:table}div.content{display:table-cell;vertical-align:middle}.centerdiv{min-height:100%;min-height:100vh;text-align:center;display:flex;align-items:center}