hr {
  border-width: 1px 0 0 0; /* ���� */
  border-style: solid; /* ��� */
  border-color: silver; /* �F */
}

.image-round1{
  border-radius: 50%;
}


[class^="img-flex-"] {
	margin-bottom: 20px;
	display: -webkit-flex;
	display: flex;
	-webkit-justify-content: space-between;
	justify-content: space-between;
}

.img-flex-2 > img,
.img-flex-2 a { width: 49%; height: 49%; }
.img-flex-3 > img,
.img-flex-3 a { width: 32%; height: 32%; }
.img-flex-4 > img,
.img-flex-4 a { width: 24%; height: 24%; }


.square{
  
  transition: 0.1s;
  -webkit-transition: 0.1s;
}

.square:hover{
  transform: scale(0.95);
}