/* 表示するスライドを切り替え */
#slide1:checked ~ .slides .slide:nth-child(1),
#slide2:checked ~ .slides .slide:nth-child(2),
#slide3:checked ~ .slides .slide:nth-child(3),
#slide4:checked ~ .slides .slide:nth-child(4),
#slide5:checked ~ .slides .slide:nth-child(5),
#slide6:checked ~ .slides .slide:nth-child(6) {
    display: block;
}

#slide1-back{background-image:url(https://www.hpn.jp/wp9/wp-content/themes/onepress-simple/img/room-southss/rss1.png);}
#slide2-back{background-image:url(https://www.hpn.jp/wp9/wp-content/themes/onepress-simple/img/room-southss/rss2.png);}
#slide3-back{background-image:url(https://www.hpn.jp/wp9/wp-content/themes/onepress-simple/img/room-southss/rss3.png);}
#slide4-back{background-image:url(https://www.hpn.jp/wp9/wp-content/themes/onepress-simple/img/room-southss/rss4.png);}
#slide5-back{background-image:url(https://www.hpn.jp/wp9/wp-content/themes/onepress-simple/img/room-southss/rss5.png);}
#slide6-back{background-image:url(https://www.hpn.jp/wp9/wp-content/themes/onepress-simple/img/room-southss/rss6.png);}