html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}

.box{
  position: relative;
}

.main-img-pc{
  display: block;
  width: 100%;
  max-width: 100%;
}
.main-img-m{
  max-width: 880px;
  width: 100%;
  margin: 0 auto;
  display: none;
}

.btn1{
	position: absolute;
	    width: 53.6%;
	    height: 3.2%;
	    top: 8.8%;
	    left: 23%;
}
.btn2{
	position: absolute;
	width: 53.6%;
	height: 12.1%;
	top: 70.8%;
	left: 23%;
}
.btn3{
	position: absolute;
	width: 53.6%;
	height: 12.1%;
	top: 84.1%;
	left: 23%;
}

@media screen and (max-width: 600px) {
  .main-img-m{
    display: block;
  }
  .main-img-pc{
    display: none;
  }

  .btn1{
		width: 91.6%;
		height: 3.3%;
		top: 8.8%;
		left: 4%;
  }
  .btn2{
		width: 91.6%;
		height: 12.1%;
		top: 70.5%;
		left: 4%;
  }
	.btn3{
		width: 91.6%;
		height: 12.1%;
		top: 84.5%;
		left: 4%;
	}
}