.container {
  width: calc(100% - 150px);
  margin-left: calc(150px);
  position: relative;
}

#archive {
  position: relative;
}

#archive .top-header {
  position: relative;
  width: calc(100%);
  height: 404px;
  background-color: #fff;
}

#archive .top-header h2 {
  width: 75px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#archive .top-header h2 img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
}

#archive .content-wrapper {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  justify-content: center;
  max-width: 1600px;
  margin: auto;
  gap: 75px 55px;
  margin-top: 10px;
}

#archive .content-wrapper .item-wrapper {
  display: flex;
  gap: 20px 20px;
}

#archive .content-wrapper .item .title {
  width: 21px;
  transition: opacity 0.5s;
}
#archive .content-wrapper .item a:hover .title {
  opacity: 0.7;
}
#archive .content-wrapper .item .title > img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
}

#archive .content-wrapper .item a {
  color: #000;
}

#archive .content-wrapper .item .image-wrapper {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px 10px;
}

#archive .content-wrapper .item .image {
  width: 512px;
  position: relative;
  overflow: hidden;
}

#archive .content-wrapper .item .image img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
  transition-duration: .5s;
}
#archive .content-wrapper .item .image img.on {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  vertical-align: bottom;
  opacity: 0;
}
#archive .content-wrapper .item a:hover .image img.on {
  opacity: 1;
}
#archive .content-wrapper .item a:hover .image img {
  transform: scale(1.2);
}

#archive .content-wrapper .item .description {
  height: 16px;
  width: auto;
  transition: opacity 0.5s;
  margin-top: 10px;
}
#archive .content-wrapper .item a:hover .description {
  opacity: 0.7;
}
#archive .content-wrapper .item .description > img {
  width: auto;
  height: 100%;
  vertical-align: bottom;
}

#archive .youtube {
  width: 1185px;
  margin: auto;
  margin-top: 150px;
  margin-bottom: 500px;
  padding-left: 52px;
}

#archive .youtube img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
}