.smk_accordion {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  margin-bottom: 20px;
}
/**
 * --------------------------------------------------------------
 * Section
 * --------------------------------------------------------------
 */
.smk_accordion .accordion_in {
  position: relative;
  z-index: 10;
  overflow: hidden;
  margin-bottom: 15px;
}
/**
 * --------------------------------------------------------------
 * Head
 * --------------------------------------------------------------
 */
.smk_accordion .accordion_in .acc_head {
  position: relative;
  display: block;
  cursor: pointer;
  overflow: hidden;
}
/* .smk_accordion .accordion_in .acc_head:after {content:'자세히보기';display: block;position: absolute;right:20px;top:20px;font-size:15px;} */
.smk_accordion .accordion_in .acc_head .acc_icon_expand {
  display: block;
  width: 18px;
  height: 18px;
  position: absolute;
  right: 135px;
  top: 50%;
  margin-top: -9px;
  background: url(../images/plusminus.png) center 0;
}
/**
 * --------------------------------------------------------------
 * Content
 * --------------------------------------------------------------
 */
.smk_accordion .accordion_in .acc_content {
  color: #777;
  font-weight: 200px;
  padding: 20px;
  font-size:1.7vh;
  box-sizing: border-box;
}
.smk_accordion .accordion_in .acc_content h1:first-of-type,
.smk_accordion .accordion_in .acc_content h2:first-of-type,
.smk_accordion .accordion_in .acc_content h3:first-of-type,
.smk_accordion .accordion_in .acc_content h4:first-of-type,
.smk_accordion .accordion_in .acc_content h5:first-of-type,
.smk_accordion .accordion_in .acc_content h6:first-of-type {
  margin-top: 5px;
}
/**
 * --------------------------------------------------------------
 * General
 * --------------------------------------------------------------
 */
.smk_accordion .accordion_in.acc_active > .acc_content {
  display: block;
}
.smk_accordion .accordion_in.acc_active > .acc_head {
}
.smk_accordion .accordion_in.acc_active > .acc_head .acc_icon_expand {
  background: url(../images/plusminus.png) center -18px;
}
@media screen and (max-width:1024px) {
    .smk_accordion .accordion_in .acc_content {font-size:1.4vw;}
}
@media screen and (max-width:800px) {
    .smk_accordion .accordion_in .acc_content {font-size: 1.8vw;}
}
@media screen and (max-width:550px) {
    .smk_accordion .accordion_in .acc_content {font-size: 3vw;}
}