main {
    margin-bottom: 30px;
    margin-top: 60px;
}

/*	1024px以上 すべて	*/
@media only screen and (min-width:1024px){
.media_screen_1024- {}

}

/* 1024未満 すべて */
@media screen and (max-width: 1023px){
.media_screen_-1023 {}

}

/* 	760以上 1024未満　*/
@media only screen and (min-width:760px) and (max-width: 1023px){
.media_screen_768-1023 {}

}

/* 	760以上 すべて */
@media only screen and (min-width:760px){
.media_screen_760- {}
header {
    display: block;
    height: 50px;
}
	
}

/* 760未満 すべて */
@media only screen and (max-width: 759px){
.media_screen_-759 {}
	
}

/* 598以上 760未満 */
@media only screen and (min-width:598px) and (max-width: 759px){
.media_screen_598-767 {}

}

/* 598未満 */
@media only screen and (max-width: 597px){
.media_screen-597 {}

}

/* 400以上 598未満 */
@media only screen and (min-width: 400px) and (max-width: 597px){
.media_screen_400-597 {}

}

/* 400未満 */
@media only screen and (max-width: 597px){
.media_screen-400 {}

}

/* 350以上 400未満 */
@media only screen and (min-width: 350px) and (max-width: 399px){
.media_screen_350-399 {}

}

/* 350未満 */
@media only screen and (max-width: 349px){
.media_screen-349 {}

}