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

	.project_description .div_caption {
		width: 100%;
		height: 180px;
	}


/********************** update **********************/	
	.project_description .div_caption_update01 {
		width: 100%;
		height: 240px;
	}
	

/********************** pages **********************/	
	
	.project_description .div_caption_img_youtube {
		width: 100%;
		height: 229px;
	}
	
	.project_description .div_caption_sample {
		width: 100%;
		height: 400px;
	}