.intro_wrap {
    display:inline-block;
    margin:auto;
    overflow:hidden;
    margin-top:100px;
    border-top:1px solid #073;
}

.ibg_fixed {
    min-width:1420px;
    width: 100%;
    opacity: 0;
}

.intro_bg_txt {
    width:1420px;
    margin:auto;
}

.intro_bg_txt div {
    position: absolute;
    z-index: 9999;
    top:200px;
    display:none;
    overflow:hidden;
}

    .intro_bg_txt div + div {
        top: 241px;
    }

.ibg1 {
    display: inline-block;
    background: url(/img/intro/intro_bg1.jpg) no-repeat left top;
    background-size: 100%;
    position: absolute;
}

.ibg2 {
    display: inline-block;
    background: url(/img/intro/intro_bg2.jpg) no-repeat left top;
    background-size: 100%;
}

.ibg3 {
    opacity:0;
    height:0px;
    top:100px;
    background: url(/img/intro/intro_bg3.jpg) no-repeat left top;
    background-size: 100%;
    position:absolute;
}

.ibg4 {
    display:none;
    top: 100px;
    background: url(/img/intro/intro_bg4.jpg) no-repeat left top;
    background-size: 100%;
    position: absolute;
}



.ibg_cloud {
    background: url(/img/intro/cloud1.png) no-repeat center top;
    background-size: 100%;
    top: 100px;
    position: absolute;
}

/* 인트로 배경 텍스트 */
/*@media screen and (max-width:1300px) {
    .intro_bg_txt div {
        top: 150px;
        margin-left:100px;
    }

    .intro_bg_txt img {
        width: 300px;
    }
}*/

.mitr_btn button {
    width: 100%;
    position: absolute;
    top: 640px;
    text-align: center;
}

.mitr_btn button {
    border:none;
    background:#fff;
    width:20px;
    height:20px;
    border-radius:10px;
}