:root{--input-padding-x:.75rem;--input-padding-y:.75rem}html,body{height:100%}body{display:-ms-flexbox;display:flex;-ms-flex-align:center;align-items:center;padding-top:40px;padding-bottom:40px;background-color:#f5f5f5}.form-signin{width:100%;max-width:420px;padding:15px;margin:auto}.form-label-group{position:relative;margin-bottom:1rem}.form-label-group>input,.form-label-group>label{padding:var(--input-padding-y) var(--input-padding-x)}.form-label-group>label{position:absolute;top:0;left:0;display:block;width:100%;margin-bottom:0;line-height:1.5;color:#495057;border:1px solid transparent;border-radius:.25rem;transition:all .1s ease-in-out}.form-label-group input::-webkit-input-placeholder{color:transparent}.form-label-group input:-ms-input-placeholder{color:transparent}.form-label-group input::-ms-input-placeholder{color:transparent}.form-label-group input::-moz-placeholder{color:transparent}.form-label-group input::placeholder{color:transparent}.form-label-group input:not(:placeholder-shown){padding-top:calc(var(--input-padding-y)+var(--input-padding-y) *(2 / 3));padding-bottom:calc(var(--input-padding-y) / 3)}.form-label-group input:not(:placeholder-shown) ~ label{padding-top:calc(var(--input-padding-y) / 3);padding-bottom:calc(var(--input-padding-y) / 3);font-size:12px;color:#777}