#content .detail_calendar_article {position:relative;}
#content a.btn_prev,
#content a.btn_next {width:20px;height:35px;position:absolute;top:26%;z-index:10;transform: translate(0,-50%);}
#content a.btn_next {right:-7%;}
#content a.btn_prev {left: -7%;}
#content a.btn_prev:before {left:-750px;top:-300px;}
#content a.btn_next:before {left:-749px;top:-250px;}
/* #################### breakpoint 640px [S] #################### */ @media only screen and (max-width: 640px) {
#content a.btn_prev,
#content a.btn_next {transform: scale(0.5);top:8%;}
#content a.btn_next {right:-9%;}
#content a.btn_prev {left: -9%;}
}
/* #################### breakpoint 480px #################### */ @media only screen and (max-width: 480px) {
#content a.btn_prev,
#content a.btn_next {transform: scale(0.5);}
#content a.btn_next {right:-6%;}
#content a.btn_prev {left: -6%;}
}