body {
  color: #383E45;
  text-align: center;
}
  img {
  max-width: 100%;
}

  #header {
  display: flex;
  align-items: center;
  justify-content: space-around;  
  margin: 0 auto;
}
  ul {
  display: flex;
  gap:30px;
}
  li {
  font-size: 14.4px;
  list-style: none;
}
  h1 img {
  width: 120px;
  height: 40px;
  padding: 10px 0;
}
  .mv img{
  width: 1280px;
  object-fit: cover;
  padding: 0 0 80px;
}
  h2 {
  display: inline-block;
  font-size: 32px;
  font-weight: bold;
  border-bottom: 1px solid #383E45;;
}
  h3 {
  font-size: 16px;
  font-weight: bold;
}

  #about .content {
  display:flex;
  justify-content: center;
  margin-top: 70px;
}
  #about img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin-right: 30px;
}
  #about .text {
  text-align: left;
}
  article {
  font-size: 14.4px;
}
  #bicycle ul {
  gap: 16.2px;
  margin-top: 60px;
}
  #bicycle li {
  width: 33%;
}
  footer {
  font-size: 10px;
}

@media screen and (max-width: 600px) {
  #header {
    justify-content: space-between;
    margin: 0 10px;
}
  h1 {
    margin: 0;
}
  .mv img {
    height: 600px;
}
  h2 {
    margin: 0;
}
  #about, #bicycle {
    margin: 15px;
}
  #about .content {
    display: block;
    margin: 60px auto 100px;
}
  #bicycle ul {
    display: block;
    padding: 0;
}
  #bicycle li {
    width: 100%;
    margin-bottom: 30px;
}
  #bicycle h3 {
    
    margin: 10px auto;
}  
  footer {
    margin-top: 110px;
}  
}