/* prize list */

ul.reading-prize-list {
    margin-top: 50px;
    width: 100%;
    justify-content: center;
    list-style-type: none;
}

ul.reading-prize-list li {
	float: left;
	border: 2px #C7C7C7 dotted;
	padding: 10px;
	box-sizing: border-box;
	border-top: none;
	border-left: none;
	box-sizing: border-box;
    list-style-type: none;
}

ul.reading-prize-list li a {text-align: center;}

ul.reading-prize-list li a:hover {border-bottom: none;}

/* first row of 1column */
ul.reading-prize-list li:nth-child(-n+1){border-top: 2px #C7C7C7 dotted;}
/* first column of 1column */
ul.reading-prize-list li:nth-child(1n+1){border-left: 2px #C7C7C7 dotted;}



@media all and (min-width: 540px) {
	/* first row of 1column */
	ul.reading-prize-list li:nth-child(-n+1){border-top: none;}
	/* first column of 1column */
	ul.reading-prize-list li:nth-child(1n+1){border-left: none;}

	/* first row of 2column */
	ul.reading-prize-list li:nth-child(-n+2){border-top: 2px #C7C7C7 dotted;}
	/* first column of 2column */
	ul.reading-prize-list li:nth-child(2n+1){border-left: 2px #C7C7C7 dotted;}
}

@media all and (min-width: 773px) {
	/* first row of 2column */
	ul.reading-prize-list li:nth-child(-n+2){border-top: none;}
	/* first column of 2column */
	ul.reading-prize-list li:nth-child(2n+1){border-left: none;}

	/* first row of 3column */
	ul.reading-prize-list li:nth-child(-n+3){border-top: 2px #C7C7C7 dotted;}
	/* first column of 3column */
	ul.reading-prize-list li:nth-child(3n+1){border-left: 2px #C7C7C7 dotted;}
}


@media all and (min-width: 1007px) {
	/* first row of 3column */
	ul.reading-prize-list li:nth-child(-n+3){border-top: none;}
	/* first column of 3column */
	ul.reading-prize-list li:nth-child(3n+1){border-left: none;}

	/* first row of 4column */
	ul.reading-prize-list li:nth-child(-n+4){border-top: 2px #C7C7C7 dotted;}
	/* first column of 4column */
	ul.reading-prize-list li:nth-child(4n+1){border-left: 2px #C7C7C7 dotted;}
}