.greeting {
	display: flex;
    justify-content: center;
    align-items: center;
    margin:auto;
}
.greeting_item {
	padding: 5px;
    margin:  5px;              /* 外側の余白 */
    border-radius:  5px;        /* 角丸指定 */
    width: auto;                 /* 幅指定 */
}
.history_sp {
}
.aisatsu {
    justify-content: center;
    align-items: center;
    margin:auto;
}
.aisatsu span{
	font-size: 1.3em;
}
.youbou {
	text-align: center;
	font-size: 2em;
}
.syomei {
	text-align: right;
  	display: block;
}
@media screen and (max-width: 768px) {
	.greeting {
   		width: 100%;
    	flex-direction: column; 
	}
	h2 {
		padding-top:50px;
	}
	.history_sp p{
		margin-left: 0;
		font-size: 50% !important;
	}
	.aisatsu span{
		font-size: 90%;
	}
}