body{
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.main{
    flex: 1;
	margin-top: 60px;
}
@media (min-width:1000px) {
	.list1{
		justify-content: flex-start;
	}
	.l1-box{
		margin-right: 10px;
	}
	.l1-box:nth-of-type(5n){
		margin-right: 0px;
	}
}