.tab_nav {
    height: 40px;
}

.tab_nav ul {
    text-align: center;
    padding: 0;
    height: 38px;
    border-bottom: 2px solid #3b82c0;
}

.tab_nav li {
    text-overflow: ellipsis;
    text-align: center;
    white-space: nowrap;
    line-height: 35px;
    background-color: #ecf0f1;
    padding: 0px 6px 0px 6px;
    border-left: 2px solid #ffffff;
    float: left;
    height: 36px;
    width: 47%;
    margin-left: 5px;
}

.tab_nav li a {
    font-size: 0.85em;
    font-weight: normal;
    color: #838584;
}

.tab_nav li a.selected_font {
    font-size: 0.95em;
    font-weight: bold;
    color: #286093;
}

.tab_nav .selected {
    text-overflow: ellipsis;
    text-align: center;
    white-space: nowrap;
    line-height: 35px;
    background-color: #ffffff;
    border-top: 2px solid #3b82c0;
    border-left: 2px solid #3b82c0;
    border-right: 2px solid #3b82c0;
    margin-left: 5px;
    height: 38px;
}

.tab_nav li:first-child {
    margin-left: 3.2%;
}

li {
    list-style-type: none;
}

#find_id_content {
    margin-top: 50px;
    margin-bottom: 30px;
    padding: 30px;
    text-align: center;
    clear: both;
}

.main_content {
    border: none;
    margin-top: 20px;
}

.find_btn {
    color: #FFFFFF;
    padding: 10px;
    font-weight: bold;
    font-size: 1.2em;
    text-align: center;
    width: 100%;
    height: 50px;
    margin: 40px 0 10px 0;
    border: 1px solid #1f76ac;
    background-color: #5bcdeb;
}

#server_error_msg {
    margin: 0 auto;
    text-align: left;
}

@media (min-width: 768px) {
    .join_input {
        width: 50%;
        margin: 0 auto;
    }
    .tab_nav li a.selected_font {
        font-size: 1.15em;
    }
    .tab_nav li a {
        font-size: 1.0em;
    }
    .find_btn {
        width: 50%;
    }
    #server_error_msg {
        width: 50%;
    }
}