.red{
    color: red;
}
.header {
    background-color: #4B6788;
}

.student_nav_info {
    margin: 15px 5px 5px 0;
    /*margin-top: 20px;*/
    color: #FFFFFF;
}

.student_nav_info a {
    color: #FFFFFF;
}

.main {
    margin: auto 20px;
}

.front-main {
    padding: 30px 0;
    max-width: 744px;
    margin-right: auto;
    margin-left: auto;
}

.main_nav {
    margin: 5px auto 5px 5px;
}

.main-block {
    background-color: #BFCED8;
    min-height: 400px;
    position: relative;
    padding: 20px;
}

.main-block-title {
    width: 100%;
    height: 30px;
    border-radius: 10px;
    background-color: #6995C8;
    color: #FEFCFE;
    margin-right: auto;
    margin-left: auto;
    margin-top: 10px;
    margin-bottom: 10px;
    padding: 5px 15px;

}

.main-block-title a {
    color: #C1E3FA;
}
.rank_list{
    min-height: 400px;
    background-color: #E5ECEE;
}
.rank_info {

    min-height: 40px;
    line-height: 40px;
    border-bottom: 1px dotted #3284BA;
}
.comment_div{
    margin: 10px auto;
}
.comment_list{
    margin: 10px;
}
.footer_nav {
    height: 50px;
    background-color: #4B6788;
    margin-top: 20px;
    line-height: 50px;
    text-align: center;
    color: #ffffff;
}

.footer_nav a {
    color: #ffffff;
}

.footer_copyright {
    margin: 20px;
    text-align: center;
    color: #596168;
}