#siteNav{
    height: 80px;
    display: flex;    
}

#siteOwl{
    width: 50px;
    height: 50px;
    cursor: pointer;
}

h1#siteTitle{
    cursor: pointer;
}

#mainArea{
    width:50%;
    min-width: 620px;
    margin:0 auto;
    padding:1em;
}

#mainArea h2{
    border-bottom: 2px solid black;
    border-top: 2px solid black;
    text-align: center;
    padding: 20px;
}

#mainArea .datetime{
    text-align: right;
    margin-bottom: 1em;
}

#mainArea h3{
    border-bottom: 1px solid grey;
    border-top: 1px solid grey ;
    padding: 10px;
    margin-bottom: 0.5em;
}

#mainArea p{
    font-family: "Roboto",Helvetica,Arial,"Hiragino Sans",sans-serif;
    font-size: 1.6rem;
    line-height: 32px;
}

span.linkbtn{
    color:rgb(42, 102, 222);
    cursor : pointer;
}

@media screen and (max-width:768px) {
    #mainArea{
      width:90%;
      min-width: 220px;
    }
    #mainArea h2{
        padding: 10px;
    }

  
  }