/* body */
/* safariのスクロールを禁止する */
body{
    position: fixed;
    left: 0;
    right: 0;
    overflow: hidden;
}

/* stage */
.nxa-stage{
    width:300px;
    height: 250px;
    background-color: #000;
    position: relative;
}

/* button */
.nxa-buttons{
    position: absolute;
    z-index: 999;
    top:200px;
    left: 8px;
    display: none;
}
.nxa-button{
    position: absolute;
}
.nxa-button__b{
    left:96px;
}
.nxa-button__c{
    left:192px;
}
.nxa-bnutton-img{
    position: absolute;
    z-index: 1;
    display: block;
    top: 0;
    left: 0;
}

/* pointer */
.nxa-pointer{
    display:block;
    width:26px;
    position:absolute;
    top:10px;
    left:65px;
    z-index:2;
    opacity:0;
    transition:opacity 0.5s ease;
}
.nxa-pointer__show{
    opacity:1;
}

/* bg */
.nxa-bg{
    position: absolute;
    top:0;
    left: 0;
    cursor: pointer;
    display: none;
}
.nxa-bg__a{
    z-index: 3;
}
.nxa-bg__b{
    z-index: 2;
}
.nxa-bg__c{
    z-index: 1;
}