@charset "UTF-8";

.site-header{width: auto;
	         position: fixed;
	         z-index: 8000;
}

img{
	width: 100%;	
}

body {
  background-color: #000000;
  margin: 0;
  width: 100vw;
  height: 100vh;
  animation: bugfix infinite 1s;
  -webkit-animation: bugfix infinite 1s;
　ont-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
	font-size: x-large;
	
}

.whatisvisual{
	text-align: center;
	margin-top: 200px;
	color: #FFFFFF;
}

.exam{
	text-align: center;
	margin-left: 100px;
	color: #FFFFFF;
}

.quiz{
	text-align: right;
	margin-right: 40px;
	color: #FFFFFF;
}

.start {
	background: #FFF;
	position: fixed;
	top: 0;
	left: 0;
	height: 100%;
	width: 100%;
	z-index: 9000;
}
.start p {
	position: fixed;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
	display: none;
	z-index: 9999;
	width: 280px;
}
.start p img{
	width: 100%;
	
}

.slider {
  width: 300px;
　　height: 200px;
　　overflow: hidden;
　　margin: 0 auto;

}
.slider-item {
  width: 300px;
  float: left;
}

.slider-inner {
  width: 300%;
  animation: slider 10s infinite ease;
}

@keyframes slider {
	0% {
	transform: translateX(0);
	}
	33% {
	transform: translateX(-300px);
	}
	66% {
	transform: translateX(-600px);
	}
	100% {
	transform: translateX(0);
	}
}

.to_quiz{
	margin-left: -50px;
}

ul.sns_demo {
	margin-top: 52px;
	margin-right: 52px;
	margin-left: 52px;
	margin-bottom: 150px;
	max-width: 300px;
	font-size: 0;
}
ul.sns_demo li {
    display: inline-block;
    vertical-align: top;
    width: calc(100%/3);
    margin: 10px;
}
ul.sns_demo li a {
    display: block;
    max-width: 120px;
    margin: 0 auto;
    position: relative;
}
ul.sns_demo li img.off {
    transition: 0.5s all;
    position: relative;
    z-index: 2;
}
ul.sns_demo li img.on {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}
ul.sns_demo li a:hover img {
    opacity: 1;
}
ul.sns_demo li a:hover img.off {
    opacity: 0;
}