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/* 通常のCSS-----------------------------------------*/

header {
  background-color: #404040;
  color: #fff;
  display: flex;
  align-items: center;
  height: 60px;
  width: 100%;
}
h1 {
  font-weight: bold;
  font-size: 21px;
  margin: 0 0 0 32px;
}
nav {
  margin: 0 32px 0 auto;
}
ul {
  display: flex;
}
li {
  margin: 0 0 0 16px;
  list-style: none;
}