html,
body {
    height: 100%;
    /**background-image: url('/themes/rok/img/rok-wide.png');
    background-size: initial;
    /* background-size: 100% 100%; */
    /**background-repeat: no-repeat;
    background-position: top center;*/
}

.background1 {
    background-image: url('/themes/rok/img/background1.jpg');
    background-size: auto 100%;
    background-repeat: repeat;
    background-position: top center;    
}

.background2 {
    background-image: url('/themes/rok/img/background2.jpg');
    background-size: auto 100%;
    background-repeat: repeat;
    background-position: top center;
}

.background3 {
    background-image: url('/themes/rok/img/background3.jpg');
    background-size: auto 100%;
    background-repeat: repeat;
    background-position: top center;
}

.background4 {
    background-image: url('/themes/rok/img/background4.jpg');
    background-size: auto 100%;
    background-repeat: repeat;
    background-position: bottom center;
}

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: 370px;
    padding: 15px;
    margin: 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="file"] {
    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;
}

.form {
    margin: auto;
}