html, body {
    height: 100%;
}
body {
    display: flex;
    align-items: center;
}

.xb-logo img,
.xb-logo a {
    display: block;
    height: 100%;
}

.xb-content {
    width: 100%;
    display: grid;
    grid-template-columns: auto  1fr auto;
    justify-items: center;
    /*align-items: end*/
}

.xb-content img {
    max-width: 400px;
}

.form-signin {
    width: 100%;
    max-width: 330px;
    padding: 15px;
    margin: auto;
}

.form-signin .form-control {
    position: relative;
    box-sizing: border-box;
    height: auto;
    padding: 10px;
    font-size: 16px;
}

.form-signin .btn {
    margin-top: 10px;
}
.form-signin .form-control:focus {
    z-index: 2;
}

.form-signin input[type="text"] {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}