.btn-file{position:relative;overflow:hidden}.btn-file input[type=file]{position:absolute;top:0;right:0;min-width:100%;min-height:100%;font-size:100px;text-align:right;filter:alpha(opacity=0);opacity:0;outline:none;background:#fff;cursor:inherit;display:block}body,html{height:100%}#wrap{min-height:100%;height:auto!important;height:100%}#footer,#push{height:60px}#footer{background-color:#f5f5f5}@media (max-width: 767px){#footer{margin-left:-20px;margin-right:-20px;padding-left:20px;padding-right:20px}}.container .credit{margin:20px 0}