@charset "UTF-8";

section.sec_explain {

}

	section.sec_explain .flexbox {
		display: flex;
		justify-content: space-between;
		flex-wrap: wrap;
	}

		section.sec_explain .flexbox .img_box {
			width: 340px; 
			/* width: 500px; */
		}

		section.sec_explain .flexbox .txt_box {
			width: calc(100% - 360px);
			/* width: calc(100% - 520px); */
		}

	section.sec_explain .grey_box {
		width: 100%;
		margin: 50px 0 0;
		padding: 30px 40px;
		background: #e5e5e5;
	}

/*---------------------- responsive styles -----------------------*/
@media screen and (max-width:480px) {
	section.sec_explain .flexbox .img_box,
	section.sec_explain .flexbox .txt_box {
		width: 100%;
	}

	section.sec_explain .flexbox .img_box {
		margin: 0 0 20px;
	}
}