.mainNav_title {
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

@media screen and (max-width:768px) {
  .mainNav_title {
    font-size: 24px;
    line-height: 40px
  }
}

ul.movielist {
  margin-top:60px;
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-wrap: wrap;
}

ul.movielist li{
  max-width: 300px;
  margin-right: 60px;
  padding-bottom: 40px;
}

.mv_container .youtube {
  width: 100%;
  aspect-ratio: 16 / 9;
}
.mv_container .youtube iframe {
  width: 100%;
  height: 100%;
}

.mv_container p.mv_title {
  width: 100%;
  word-break: break-all;
  margin-top:20px;
  font-size: 20px;
}