style_insert.css

.logo1 {
  text-align: center;
  color: #5e7fca;
  font-size: 20px;
  font-weight: bolder;
  text-shadow: 1px 1px 1px silver;
  font-style: italic;
}

*{box-sizing: border-box;}
ul.gnav-navi-1{
  background: #333;
  padding: 0;
  text-align: center;
}
ul.gnav-navi-1 li{
  display: inline-block;
}
ul.gnav-navi-1 li a{
  display: block;
  padding: 1em;
  color: #fff;
  text-decoration: none;
}
ul.gnav-navi-1 a::first-line{
  font-size: 16px;
  font-weight: bold;
}
ul.gnav-navi-1 li:hover{
  background: #FF7F50;
}

h1 {
  text-align: center;
  color: #5e7fca;
  font-size: 20px;
  font-weight: bolder;
  text-shadow: 1px 1px 1px silver;
  font-style: italic;
}

div.aTag {
  text-align: center;
}

html, body { height: 100%;}

body > footer {
  position: sticky;
  text-align: center;
  background-color: #333;
  color: #fff;
  padding: 3px 0;
  top: 100vh;
}