#mainContentsContainer > img{
  display: block;
  border: none;
}

#mainContentsContainer > img:first-of-type{
  width: 100%;
  margin: 4vw 0;
}

#mainContentsContainer > img:not(:first-of-type),
#mainContentsContainer > iframe{
  width: 80%;
  margin: 4vw auto;
  display: block;
}

#mainContentsContainer > img.vertical{
  width: 48%;
}

#mainContentsContainer > article,
#mainContentsContainer > article *{
  font-size: 1.4rem;
}

@media screen and (max-width: 767px){



  
}