body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, "sans-serif";
	margin: 0;
	padding: 0;
	background-color: #eee;
	background-image:url("../img/back.png"); 
	background-attachment:fixed;
	background-position:center;
}

*,
*:before,
*:after {
  box-sizing: border-box;
}

.aos-all {
  width: 1000px;
  max-width: 98%;
  margin: 10vh auto 0 auto;
}

.aos-item {
  display: inline-block;
  float: left;
  width: 33.3333%;
  height: 300px;
  padding: 20px;
}

.aos-item__inner {
  position: relative;
  width: 100%;
  height: 100%;
  float: left;
  background: #1da4e2;
  line-height: 260px;
  text-align: center;
  color: #fff;
}

@media screen and (max-width: 800px) {
  .aos-item {
    width: 50%;
  }
}

@media (min-width: 1000px)
.container {
    width: 800px;
}
@media (min-width: 992px)
.container {
    width: 600px;
}
@media (min-width: 768px)
.container {
    width: 400px;
}
.container {
    margin-right: auto;
    margin-left: auto;
}


.flex{
  max-width: 700px;
  margin: 0 auto;
	border-bottom: #bdbdbd solid 1px;
	padding: 10px;
}
.item img{
  max-width: 390px;
  display: block;
  margin: 0 auto;
	margin-bottom: 10px;
}
@media screen and (min-width:395px) {
  .flex{
    display:flex;
    flex-wrap:nowrap;
    justify-content:space-between;
  }
  .item+.item{
    margin-left:0.5em;
  }
}

footer {
  position: fixed;
	z-index: 100;
  left: 0;
  bottom: 0;
  width: 100%;
	height: 105px;
	background-image: url("../img/btn2_.png");
	background-repeat: no-repeat;
	background-position: center;
	text-align: center;
	font-size: 1.2em;
	color: #FFFFFF;
	font-weight: bold;
}