header{
   position: relative;
   top: 0px;
   display: block;
   width: 100%;
   height: auto;
   background-color: white;
   border-bottom: 1px double silver;
   z-index: 27;
}
nav#n_nav ul.navs {
   list-style-type: none;
}
nav#n_nav ul.navs li.nav {
   display: inline-block;
}
li.nav a, li.nav a:visited {
   color: gray;
   text-decoration: none;
}
main{
   padding-left: 3vw;
}

table#t_cominfo{
   border-collapse: collapse;
}
table#t_cominfo th, table#t_cominfo td{
   border-top: 1px gray solid;
   border-bottom: 1px gray solid;
   border-collapse: collapse;
   padding-left: 5px;
   padding-right: 5px;
}

div.side_container{
   display: flex;
   flex-direction: row;
}
@media only screen and (max-width: 700px){
   div.side_container{
      flex-direction: column;
   }
   p.side_right{
      margin-right: 5vw;
   }
}

section#s_greet div.side_container figure.side_left{
   margin-left: 0px;
}

section#s_hist table td{
   vertical-align: top;
   padding: 0 3px 0 3px;
}
section#s_hist table td img#img_saone{
   padding-left: calc(100% - 80px);
}