#header {
    text-align: justify;
}
.vertical-center {
    position: absolute;
    transform: translateY(-50%);
}
.logoBlock {
    position: absolute;
}


#mainpage, .studydiv {
    /* display: inline-block; */
    width: 100%;
}

#captchaDiv {
    width: 205px;
    overflow: hidden;
    display: inline-block;
}