body {
  color: #212529;
  background-color: #ffffff;
  /* font-family: 'Arial', 'Helvetica', 'メイリオ', Meiryo, 'Hiragino Sans', 'ヒラギノ角ゴシック', YuGothic, 'Yu Gothic', 'ＭＳ Ｐゴシック', 'MS PGothic', sans-serif; */
  margin: 0;
}

#CellLineage {
  height: 1000px;
}

.uwrap {
  display: flex;
}

.lwrap {
  display: flex;
  overflow-x: scroll;
  overflow-y: hidden;
  margin: 20px;
  width: 60%;
  height: 1000px;
  position: relative;
}

.rwrap {
  flex-direction: column;
}

.ruwrap {
  display: flex;
  margin: 10px;
}

.rdwrap {
  display: flex;
  margin: 10px;
}

.logo {
  height: 70px;
  padding: 0;
  margin: 20px 0 0 20px;
}

#btn_bar {
  margin: 0 0 0 20px;
  padding: 0;
}

.btn {
  width: 150px;
}

#cell110 {
  width: 400px;
}

#tailbud {
  width: 400px;
}

#C_Epidermis {
  position: absolute;
  top: 0;
  margin: 0;
  height: 100%;
  display: none;
}

#C_Tlc {
  position: absolute;
  top: 0;
  margin: 0;
  height: 100%;
  display: none;
}

#C_Nervous {
  position: absolute;
  top: 0;
  margin: 0;
  height: 100%;
  display: none;
}

#C_Notochord {
  position: absolute;
  top: 0;
  margin: 0;
  height: 100%;
  display: none;
}

#C_Endoderm {
  position: absolute;
  top: 0;
  margin: 0;
  height: 100%;
  display: none;
}

#C_Mesen {
  position: absolute;
  top: 0;
  margin: 0;
  height: 100%;
  display: none;
}

#C_Muscle {
  position: absolute;
  top: 0;
  margin: 0;
  height: 100%;
  display: none;
}



#E110_Epidermis {
  position: absolute;
  width: 400px;
  display: none;
}

#E110_Tlc {
  position: absolute;
  display: none;
  width: 400px;
}

#E110_Nervous {
  position: absolute;
  width: 400px;
  display: none;
}

#E110_Notochord {
  position: absolute;
  width: 400px;
  display: none;
}

#E110_Endoderm {
  position: absolute;
  width: 400px;
  display: none;
}

#E110_Mesen {
  position: absolute;
  width: 400px;
  display: none;
}

#E110_Muscle {
  position: absolute;
  width: 400px;
  display: none;
}



#ETail_Epidermis {
  position: absolute;
  width: 400px;
  display: none;
}

#ETail_Tlc {
  position: absolute;
  display: none;
  width: 400px;
}

#ETail_Nervous {
  position: absolute;
  width: 400px;
  display: none;
}

#ETail_Notochord {
  position: absolute;
  width: 400px;
  display: none;
}

#ETail_Endoderm {
  position: absolute;
  width: 400px;
  display: none;
}

#ETail_Mesen {
  position: absolute;
  width: 400px;
  display: none;
}

#ETail_Muscle {
  position: absolute;
  width: 400px;
  display: none;
}

footer {
  display: block;
  width: 100%;
  height: 100px;
}