.vertical-center {
    min-height: 100%;  /* Fallback for browsers do NOT support vh unit */
    min-height: 100vh; /* These two lines are counted as one :-)       */

    display: flex;
    align-items: center;
}

body {
    margin: 0;
    padding: 0;
    background-color: #0000f7;
    background-position: center;
    background-repeat: no-repeat;
    background-image: url("/images/login-background.jpg");
    height: 100vh;
}

.outer {
    display: table;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
}

.middle {
    display: table-cell;
    vertical-align: middle;
}

.inner {
    margin-left: auto;
    margin-right: auto;
    max-width: 600px;
    padding: 5px;
    border: #1b1e21;
    border-radius: 5px;
}
#confirm-login{
    color:white;
    background-color: #ef6c00;
}