#post_list{
  padding: 0;
  font-size: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  max-width: 1000px;
  margin: 80px auto;
  justify-content: center;
  column-gap: 30px;
  row-gap: 50px;
}

#post_list .content{
  width: 300px;
  height: auto;
  background-color: #f4f6f7;
  padding: 10px;
  border-radius: 10px;
  margin: 0 auto;
  transition: all 0.4s;
  &:hover{
    /* box-shadow: 0px 0px 31px 1px #bababa; */
    box-shadow: 0px 0px 31px -6px #bababa;
  }
}

.thumb img{
  width: 300px;
  height: auto;
  background-color: #fff;
}

.subjects{
  padding: 0 10px;
}

.article_date{
  font-size: 14px;
}

.article_title{
  font-size: 18px;
}

.article_tag{
  font-size: 14px;
  background-color: #fff;
  border: #00b2ab solid 1px;
  color: #00b2ab;
  display: inline-block;
  padding: 2px 20px;
  border-radius: 30px;
}

.contents_wrapper{
  padding: 0 15px;
}

@media screen and (max-width:1100px){
  #post_list{
    grid-template-columns: 1fr 1fr;
  }

}

@media screen and (max-width:750px){
  #post_list{
    grid-template-columns: 1fr;
    margin-top: 50px;
  }
  .group-list-container #group-list{
    justify-content: left;
  }
  main #lab div.container div.container-inner{
    width: 100%;
    max-width: 100%;
  }
  #group-list{
    padding: 30px 15px;
    row-gap: 20px;
  }
  .group-list-container{
    margin-bottom: 50px;
  }

}