.middle_block {
    position: relative;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -moz-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    -o-transform: translateY(-50%);
    transform: translateY(-50%);
}

.ivblock {
    display: inline-block;
    vertical-align: top;
}

.no-padding {
    padding: 0px;
}

.vertical-align {
    display: flex;
    align-items: center;
}

/********* body *********/
.site_map_container {
    width: 767px;
    margin: 60px auto 145px auto;
}

.site_map_container > .arrow_title {
    border-bottom: 1px dotted black;
    height: 50px;
    margin-top: 10px;
}

.arrow_title > .big_right_arrow {
    border-left: 14px solid #FDE400;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
}

.arrow_title > .general_site {
    font-size: 19px;
    margin-left: 5px;
    width: 90%;
}

.general_site .title_tail {
    padding-left: 25px;
    font-size: 15px;
    padding-top: 4px;
}

.site_map_container .detail_site_container {
    width: 707px;
    margin: 12px auto 60px auto;
}

.detail_site_container .detail_site {
    height: 50px;
    border-bottom: 1px solid #CECFC8;
}

.detail_site > .site_head {
    font-size: 17px;
}