@charset "UTF-8";

.item_box * {
  box-sizing: border-box;
}
 
.item_box {
  width: 100%;
  max-width: 100%; /* 幅調整 */
}
 
.item_link {
  display: block;
}
 
.item_content {
  position: relative;
  overflow: hidden;
  border-radius:5px;
}
 
.item_image img {
  width: 100%;
  height: auto;
  vertical-align: top;
}
 
.item_mask {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.8);
  opacity: 0;
}
 
.item_mask-text {
  width: 100%;
  padding: 0.5em;
  font-size: 0.8em;
  color: #fff;
  text-align: left;
  position: absolute;
  top: 0;/*50%*/
  left: 0;
/*  transform: translateY(-50%);*/
}
 
.item_text {
  margin-top: 10px;
  text-align: center;
}
 
.item_box .item_link:hover .item_mask {
  opacity: 1;
}
 
/* -slide-to-the-right */
.item_box.-slide-to-the-right .item_mask {
  width: 50%;
  left: -50%;
  transition: left 0.5s ease, opacity 0.5s ease;
}
 
.item_box.-slide-to-the-right .item_link:hover .item_mask {
  left: 0;
}
 
.item_box.-slide-to-the-right .item_image img {
  transition: margin-left 0.5s ease
}
 
.item_box.-slide-to-the-right .item_link:hover .item_image img {
  margin-left: 50%;
}