/* sawaka */
li.slide1 {
	background: url(../images/slide_1.jpg) top center / cover no-repeat;
    background-color: pink;
}
li.slide2 {
	background: url(../images/slide_2.jpg) center center / cover no-repeat;
    background-color: beige;
}
li.slide3 {
	background: url(../images/slide_3.jpg) center center / cover no-repeat;
    background-color: aquamarine;
}
li.slide4 {
	background: url(../images/slide_4.jpg) center center / cover no-repeat;
    background-color: yellowgreen;
}