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: 18.4%;
  height: 6.3%;
  top: 41.8%;
  left: 21.6%;
}
.btn2{
  position: absolute;
  width: 18.4%;
  height: 6.3%;
  top: 41.8%;
  left: 40.6%;
}
.btn3{
  position: absolute;
  width: 18.4%;
  height: 6.3%;
  top: 41.8%;
  left: 59.7%;
}
.btn4{
  position: absolute;
  width: 56.6%;
  height: 5.5%;
  top: 72.3%;
  left: 21.6%;
}
.btn5{
  position: absolute;
  width: 56.6%;
  height: 7.2%;
  top: 79.8%;
  left: 21.6%;
}
.btn6{
  position: absolute;
  width: 56.6%;
  height: 7.4%;
  top: 87.7%;
  left: 21.6%;
}

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

  .btn1{
    position: absolute;
    width: 28.1%;
    height: 5.4%;
    top: 41.5%;
    left: 6.6%;
  }
  .btn2{
    position: absolute;
    width: 28.1%;
    height: 5.4%;
    top: 41.5%;
    left: 35.6%;
  }
  .btn3{
    position: absolute;
    width: 28.1%;
    height: 5.4%;
    top: 41.5%;
    left: 64.9%;
  }
  .btn4{
    position: absolute;
    width: 86.6%;
    height: 4.5%;
    top: 69.9%;
    left: 6.7%;
  }
  .btn5{
    position: absolute;
    width: 86.6%;
    height: 6.2%;
    top: 76.9%;
    left: 6.7%;
  }
  .btn6{
    position: absolute;
    width: 86.6%;
    height: 6%;
    top: 85.3%;
    left: 6.7%;
  }
}