.thum_board_box { width: 100%; height: auto; padding-bottom: 60px; border-bottom: 1px solid #e0e0e0; }
.thum_board_box .thum_board_item {
	width: calc(33.333% - 20px); height: auto;
	margin-top: 45px; margin-left: 30px;
	cursor: pointer;
}

.thum_board_box .thum_board_item:nth-child(1) { margin-top: 0px; margin-left: 0px; }
.thum_board_box .thum_board_item:nth-child(2) { margin-top: 0px; }
.thum_board_box .thum_board_item:nth-child(3) { margin-top: 0px; }
.thum_board_box .thum_board_item:nth-child(3n+1) { margin-left: 0px; }

.thum_board_box .thum_board_item .thum_board_img {
	width: 100%; height: auto;
	background-color: #fff;
	background-position: center center;
    background-repeat: no-repeat;
    background-size: auto auto;	
}

.thum_board_box .thum_board_item .thum_board_img > img { width: 100%; height: auto; }

.thum_board_box .thum_board_item .thum_board_title {
	width: 100%; height: 25px; line-height: 25px;
	font-size: 18px; color: #2a2a2a; text-align: left;
	margin-top: 15px;

	white-space: nowrap; overflow: hidden; text-overflow: ellipsis; 
	white-space: normal; word-wrap: break-word; display: -webkit-box; 
	-webkit-line-clamp: 1; -webkit-box-orient: vertical;
}

.thum_board_box .thum_board_item .thum_board_category {
	width: 100%; height: 25px; line-height: 25px;
	font-size: 14px; color: #666666; text-align: left;

	white-space: nowrap; overflow: hidden; text-overflow: ellipsis; 
	white-space: normal; word-wrap: break-word; display: -webkit-box; 
	-webkit-line-clamp: 1; -webkit-box-orient: vertical;
}



@media (max-width: 479px){ 
	.thum_board_box { padding-bottom: 45px; }
	.thum_board_box .thum_board_item { width: calc(50% - 10px); margin-left: 10px; margin-top: 25px; }

	.thum_board_box .thum_board_item:nth-child(1) { margin-top: 0px; margin-left: 0px; }
	.thum_board_box .thum_board_item:nth-child(2) { margin-top: 0px; }
	.thum_board_box .thum_board_item:nth-child(3) { margin-top: 25px; }
	.thum_board_box .thum_board_item:nth-child(3n+1) { margin-left: 10px; }
	.thum_board_box .thum_board_item:nth-child(2n+1) { margin-left: 0px; }
	.thum_board_box .thum_board_item .thum_board_title { font-size: 14px; }
	.thum_board_box .thum_board_item .thum_board_category { font-size: 12px; }
}

@media (max-width: 749px) and (min-width: 480px) { 
	.thum_board_box { padding-bottom: 45px; }
	.thum_board_box .thum_board_item { width: calc(50% - 7.5px); margin-left: 15px; margin-top: 30px; }

	.thum_board_box .thum_board_item:nth-child(1) { margin-top: 0px; margin-left: 0px; }
	.thum_board_box .thum_board_item:nth-child(2) { margin-top: 0px; }
	.thum_board_box .thum_board_item:nth-child(3) { margin-top: 30px; }
	.thum_board_box .thum_board_item:nth-child(3n+1) { margin-left: 15px; }
	.thum_board_box .thum_board_item:nth-child(2n+1) { margin-left: 0px; }
	.thum_board_box .thum_board_item .thum_board_title { font-size: 14px; }
	.thum_board_box .thum_board_item .thum_board_category { font-size: 12px; }
}

@media (max-width: 1023px) and (min-width: 750px) { 
	.thum_board_box { padding-bottom: 45px; }
	.thum_board_box .thum_board_item { width: calc(33.333% - 10px); margin-left: 15px; margin-top: 30px; }

	.thum_board_box .thum_board_item:nth-child(1) { margin-top: 0px; margin-left: 0px; }
	.thum_board_box .thum_board_item:nth-child(2) { margin-top: 0px; }
	.thum_board_box .thum_board_item:nth-child(3) { margin-top: 0px; }
	.thum_board_box .thum_board_item:nth-child(3n+1) { margin-left: 0px; }
	.thum_board_box .thum_board_item .thum_board_title { font-size: 16px; }
}


@media (max-width: 1279px) and (min-width: 1024px) { 
	
}


/*
@media (max-width: 479px){ 

}

@media (max-width: 749px) and (min-width: 480px) { 

}

@media (max-width: 1023px) and (min-width: 750px) { 

}


@media (max-width: 1279px) and (min-width: 1024px) { 
	
}
*/