div.overall_container{
    width: 60%;
    margin: auto;
    text-align: center;
    display:block;
}

div.form_container{
    text-align: center;
    width: 20%;
    margin: auto;
}

div.top_login_bar {
    height: 25vmin;
    margin:auto;

}

table.login_table{
    margin-top: 3vmin;
    margin-bottom: 3vmin;
}