#unity-container.unity-desktop {
  position: static;
  left: 0;
  top: 0;
  transform: translate(0%, 0%);
}

body {
  font-family: "Noto Sans JP", sans-serif;
  font-optical-sizing: auto;
  /* font-weight: <weight>; */
  font-style: normal;
}

#unity-container {
  margin: 0 auto;
  /* padding-top: 100px; */
}

.how-to-operation {
  max-width: 800px;
  padding-top: 80px;
  padding-bottom: 60px;
  margin: 0 auto;
}

.nav-menu-link:hover {
  color: #f4f4f4;
  text-decoration: none;
}

#unity-footer {
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 800px;
  padding-top: 30px;
}

.display-flex {
  display: flex;
}

#unity-fullscreen-button {
  float: none;
}

.gameplay-box {
  width: 800px;
  height: 450px;
  /* margin-left: 100px; */
  margin: 0 auto;
  margin-top: 60px;
  position: relative;
}

.nav-contents-box {
  display: flex;
  /* justify-content: space-between; */
  color: #fff;
  max-width: 800px;
  margin: 0 auto;
  /* padding-top: 5px; */
}

.nav-menu-youtube-with-twitter {
  margin: 0 0 0 auto;
  display: flex;
  min-width: 200px;
  justify-content: space-between;
}

.top-icon {
  padding-top: 2px;
}

.nav-menu-youtube-with-twitter .nav-menu-box {}

header {
  height: 60px;
  background-color: #333;
}

.nav-menu-text {
  padding-top: 15px;
}

.nav-menu-link {
  color: #e1e1e1;
  text-decoration: none;
  transition: 0.3s ease color;
}

h1 {
  margin: 0;
}

h3 {
  margin: 0;
}