body {
  font-family: 'Helvetica', 'Arial', sans-serif;
}
img {
  max-width: 100%;
}
header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0 10px;
}
.logo h1 {
  font-family: 'Domine', serif;
}
.nav {
  margin-left: auto;
}
.nav ul li {
  display: inline-block;
  padding-left: 5px;
}
.nav ul li a {
  font-family: 'Domine', serif;
  font-size: 1.2rem;
  color: #000;
  text-decoration: none;
}
.nav ul li a:hover {
  color: red;
}
.jumbotron {
    height: 400px;
    background-image: url('../images/Aikido-header.jpg');
    background-size: cover;
}
.about {
  width: 70%;
  margin: 0 auto;
  justify-content: center;
}
.about h2 {
  text-align: center;
}
.columns {
  text-align: center;
}
.column a {
  text-decoration: none;
  color: red;
}
.column a:hover {
  color: blue;
}
.column img {
  max-width: 90%;
}
.add-info {
  width: 70%;
  margin: auto;
}
.add-info h2 {
  text-align: center;
}
footer {
  margin-top: 5px;
  text-align: center;
  border-top: 2px solid #ccc;
}
@media only screen and (min-width: 768px) {
  .columns {
    display: grid;
    grid-gap: 10px;
    grid-template-columns: repeat(3, 1fr);
    text-align: center;
  }
  .jumbotron {
      height: 700px;
  }
}