.timetable_box{
    margin: 0 auto 5rem;
    padding: calc(80 / 1080 * 100%) calc(100 / 1080 * 100%);
    max-width: 880px;
    background-color: #fff;
    border-radius: 4rem;
    font-size: 1.2em;
}
.colspan{
  display: flex;
  align-items: center;
  margin-bottom: 3rem;
  line-height: 1.8;
}
.time{
  width:calc(300 / 880 * 100%);
  text-align: center;
  padding: 1em;

}

.artist{
  position: relative;
  width:calc(580 / 880 * 100%);
  padding: 1em;
}

.kikaku{
width: fit-content;
padding: 1rem 0.5rem;
background-color: #fff;
margin-bottom: 1em;
}
.time01 {
  background-color: #fcd950;
}
.time02 {
  background-color: #f37a7b;
}
.time03 {
  background-color: #a2a9ff;
}
.time04 {
  background-color: #53d6e8;
} 

.time01 .artist{
  background-color: #ffeb9c;
}
.time02 .artist{
  background-color: #ffa3a3;
}
.time03 .artist{
  background-color: #b8beff;
}
.time04 .artist{
  background-color: #98f3ff;
}

@media screen and (min-width: 768px) {
  .colspan{
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    line-height: 2;
  }
  .time{
    width:calc(200 / 880 * 100%);
    text-align: center;
    padding: 1em;
  }
  
  .artist{
    position: relative;
    width:calc(680 / 880 * 100%);
    padding: 2em 1em;
  }
}