style.css

html, body {
    height: 100%;
}

body {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    padding-top: 56px;
    padding-bottom: 56px;
    background-color: #f5f5f5;
}

.form-signin {
    width: 100%;
    max-width: 330px;
    padding: 15px;
    margin: 0 auto;
}

.form-signin .checkbox {
    font-weight: 400;
}

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

.form-signin .form-control:focus {
    z-index: 2;
}

.form-signin input[type="email"] {
    margin-bottom: 10px;
}

.footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    height: 56px;
    line-height: 56px;
    background-color: #ebebeb;
    text-align: center;
}

@media screen and (max-height: 740px) {
    .text-left .logo {
        display: none;
    }
}

@media screen and (max-height: 435px) {
    .text-center .logo {
        display: none;
    }
}

.alert.fixed-top {
    width: 100%;
    max-width: 330px;
    margin: 0 auto;
    top: 80px;
}

.loading {
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.7);
    z-index: 10;
    display: none;
}

.loading.show {
    display: flex;
}

.form-examples {
    margin: 56px auto;
    overflow-y: auto;
    padding-top: 56px;
    padding-bottom: 56px;
}

.col-form-label {
    font-weight: bold;
}

.iproov-progress .spinner span {
    position: absolute;
    margin-top: 28px;
    margin-left: 23px;
    color: #2E529C;
    font-weight: bold;
}

.iproov-progress .spinner .fa-spinner:before {
    color: #F0B752;
}