img {
  height: auto;
}
#pop1, #pop2, #pop3{
  width: 100%;
  max-width: 235px;
}
#pop1 {
  background: url('../images/revision-news1-off.png')no-repeat;
  background-size: contain;
  height: 234px;
  position: relative;
}

#pop2 {
  background: url('../images/revision-news2-off.png')no-repeat;
  background-size: contain;
  height: 234px;
  position: relative;
}

#pop3 {
  background: url('../images/revision-news3-off.png')no-repeat;
  background-size: contain;
  height: 234px;
  position: relative;
}
#pop1:hover{
  background: url('../images/revision-news1-on.png')no-repeat;
  background-size: contain;
  width: 235px;
  height: 234px;
}
#pop2:hover{
  background: url('../images/revision-news2-on.png')no-repeat;
  background-size: contain;
  width: 235px;
  height: 234px;
}
#pop3:hover{
  background: url('../images/revision-news3-on.png')no-repeat;
  background-size: contain;
  width: 235px;
  height: 234px;
}

.pop {
    position: fixed;
    top: 100px;
    z-index: 999;
    width: 100%;
}

.pop .popArea {
    width: 55%;
    max-width: 749px;
    height: calc(100vh - 10rem);
    overflow-y: scroll;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    margin: auto;
    z-index: 1001;
    border: 2px solid #4a4a78;
}
/* 變更卷軸 */
.popArea::-webkit-scrollbar-track
{
	-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
	background-color: #4a414a;
	border-radius: 10px;
}
.popArea::-webkit-scrollbar
{
	width: 16px;
	background-color: #4a414a;
}

.popArea::-webkit-scrollbar-thumb
{
	border-radius: 7px;
	background-image: -webkit-gradient(linear,
                    left bottom,
                    left top,
                    color-stop(0.44, rgb(170 138 191)),
                    color-stop(0.72, rgb(134 105 169)),
                    color-stop(0.86, rgb(139 118 197)));
}

/* 隱藏捲軸 */
/* .popArea::-webkit-scrollbar{
    display: none;
} */
/* 變更卷軸 */

.popStart {
  width: 163px;
  height: 163px;
  position: absolute;
  cursor: pointer;
  z-index: 1;
  left: 50%;
  top: 50%;
  margin-left: -81.5px;
  -webkit-transform: translateY(-50%);
  -o-transform: translateY(-50%);
  transform: translateY(-50%);
  background:unset;
  border: none;
}

.btnclose {
    width: 55%;
    max-width: 749px;
    margin: auto;
    position: relative;
    z-index: 1005;
}

.btnclose button {
  width: 35px;
  height: 35px;
  background: transparent url(../images/btn-close.png) no-repeat 0 100%;
  background-size: 100%;
  background-position: top right;
  cursor: pointer;
  padding: 0;
  border: none;
  outline: none;
  position: absolute;
  right: 19px;
}

.overlay {
  z-index: 1000;
  position: fixed;
  bottom: 0;
  top: 0;
  right: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
}


.scrollbar{
	margin-left: 30px;
	float: left;
	width: 55%;
  max-width: 749px;
  height: calc(100vh - 13rem);
	overflow-y: scroll;
	margin-bottom: 25px;
}

.force-overflow{
	min-height: 450px;
}

@media screen and (max-width:768px){
  #pop1,
  #pop2,
  #pop3{
    width: calc(100% / 3);
    height: 150px;
    background-size: contain;
    background-position: 50% 50%;
  }
  #pop1:hover,
  #pop2:hover,
  #pop3:hover{
    width: calc(100% / 3);
    height: 150px;
    background-size: contain;
    background-position: 50% 50%;
  }
  .popStart{
    width: 115px;
    height: 117px;
  }
  .pop .popArea{
    height: calc(100vh - 10rem);
    width: 100%;
    /* overflow: hidden; */
  }
  .btnclose{
    width: 100%;
    /* top: calc(100vh - 46rem); */
  }
  .btnclose button{
    width: 45px;
    height: 45px;
    right: 0;
  }
  .popArea::-webkit-scrollbar{
    width: 10px;
  }
}