/* for Header */
* {
      margin: 0;
      Padding: 0;
}
table {
      width: 940px;
      height:78px;
      background-image: url(../img/upper_logo_bg.gif);
}
table tr {
      font-family: "メイリオ";
      font-size: 11pt;
}

.header_link {
   display: block;
   color: black;
   text-decoration: none;
}
.header_link:hover {
   color: inherit;
   text-decoration: none;
}
header ul {
      width: 940px;
      list-style:none;
      display:flex;
      justify-content: center;
      Font-size: 90%;
}
header ul li {
   background-image: url(../img/menu_bg.gif);
   flex: auto;
   text-align: center;
   width: 105px;
   line-height: 2em;
}
#left { /* only use li in header */
   background-image: url(../img/left_0.gif);
   width: 54px;
}
#right { /* only use li in header */
   background-image: url(../img/right_0.gif);
   width: 154px;
}

/* for article & footer */
article {
    margin: 20px 0 0 40px;
    width: 745px;
}
footer {
   margin: -0.5em 0 15px 2px;
   width: 770px;
   height:20px;
   /* border-top: 0.2px solid #aaa; */
   background-color: #fff;
}
footer p {
   font-family: sans-serif;
   text-align: right;
   font-size: 10px;
   font-size: .85rem;
   color: #333;
}

/* for the buttom; Scroll to TOP */
a.top-link {
   visibility: hidden;
   position: fixed;
   bottom: 25px;
   right: 30px;
   z-index: 99;
   font-size: 16px;
   width: 24px;
   height: 24px;
   padding: 8px 10px 12px 10px;
   border-radius: 64px;
   background-color: #4169e1;
   fill: #fff;
   text-decoration:none;
   text-align: center;
   transition: visibility 0.5s, opacity 0.8s linear;
}
  .top-link:hover {
    background-color: #3b5fcc;
  }
  /* for a bubble */
  .fukidashi {
    display: none;
    width: 68px;
    position: fixed;
    bottom: 74px;
    right: 12px;
    padding: 4px;
    border-radius: 5px;
    background: #333;
    color: #fff;
    text-align:center;
    font-size: 12px;
    font-size: 0.7rem;
  }
  /* for the triangle under the bubble*/
  .fukidashi:after {
    position: absolute;
    width: 0;
    height: 0;
    left: -8px;
    bottom: -15px;
    margin-left: 35px;
    border: solid transparent;
    border-top-color: #333;
    border-width: 10px;
    pointer-events: none;
    content: " ";
  }
  /* adjacent selector */
  a.top-link:hover + .fukidashi {
    display: block;
  }