@charset "utf-8";
* {
  margin: 0;
  padding: 0;
  font-family: 'billy';
}
@font-face {
  font-family: 'billy';
  src: url('../fonts/billy.ttf') format('truetype'), /* Safari, Android, iOS */ url('../fonts/billy-webfont.woff2') format('woff2'), url('../fonts/billy-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}
#header {
  height: 100px;
  width: 100%;
  text-align: center;
  background-color: rgba(211, 71, 76, 0.5);
}
#header h1 {
  line-height: 100px;
}
.section {
  width: 80%;
  padding: 0 10% 20px 10%;
  background-color: rgba(220, 207, 165, 0.5);
}
.section h2 {
  width: 100%;
  height: 50px;
  line-height: 50px;
  text-indent: 2em;
}
.section ul li {
  position: relative;
  list-style: none;
  display: inline-block;
  width: 100px;
  height: 100px;
  background-color: rgba(16, 52, 86, 0.5);
  margin: 10px 10px;
  border-radius: 100px;
  line-height: 100px;
  transition: all .5s;
}
.section ul li:hover {
  border-radius: 20px;
  background-color: #103456;
}
.section ul li a {
  display: block;
  font-size: 26px;
  width: 100%;
  height: 100%;
  text-align: center;
  text-decoration: none;
  color: #e1efd1;
}
.section a:hover + .tip {
  display: block;
}
.section .tip {
  display: none;
  position: absolute;
  width: 120px;
  background-color: #f3d6d6;
  padding: 0 30px;
  border-radius: 5px;
}
.section .tip p {
  line-height: 30px;
}
.section .tip .tri {
  display: block;
  position: absolute;
  border: 6px solid transparent;
  border-bottom: 9px solid #f3d6d6;
  top: -14px;
}