.tabmenu{padding-bottom:6.25vw}
.tabmenu li:first-child a{background-image:url('../img/event_tab1.jpg')}
.tabmenu li:nth-child(2) a{background-image:url('../img/event_tab2.jpg')}
.tabmenu li:nth-child(2){margin-left:1.5625vw}
.tabmenu li:last-child{margin-top:1.5625vw}
.tabmenu li:last-child a{background-image:url('../img/event_tab3.jpg')}

.board_list_thumb{width:38%}
.board_list_text{width:58%}