.mainsl, .backgroundTransition, .backgroundTransition .image-top, .backgroundTransition .image-bottom {
  height: 80vh;
  width: 100%;
}

.mainsl { margin: 0; }

.mainsl .backgroundTransition {
  position: relative;
  overflow: hidden;
  background-size: cover;
}

.mainsl .backgroundTransition .image-bottom, .mainsl .backgroundTransition .image-top {
  position: absolute;
  left: 0;
  top: 0;
  background-size: cover;
}

.mainsl .backgroundTransition .image-bottom { z-index: -2; }

.mainsl .backgroundTransition .image-top {
  z-index: -1;
  display: none;
}

#image-download { display: none; }


/*메인슬라이드*/
.mainsl{top: -60px;}
/*
  Add an initial background-image to .backgroundTransition container. This image
  should match the first image passed into the plugin's 'background' array.
  Adding this here ensures that there is a background image loaded on page load,
  while waiting for document.ready().
 */
.backgroundTransition {
  background-image: url('../img/main/main_bg.jpg');
}

/*
  The following css is merely to style the white container in the middle of the page.
*/
.mainsl_content {
  display: table; margin: 50px auto;
    color:#333; text-align: center;
    padding: 30vh 0;

}

.mainsl_content h1{font-size: 45px; font-weight: 500}
.mainsl_content p{font-size: 18px;}
.table{display: table; margin: 50px auto;}
.table a{ margin: 50px 20px; padding: 10px 30px; color: #fff;}