sendou.ink/pages/styles.css

body {
  margin: 0;
}
header,
footer {
  grid-column-end: span 3;
}
main {
  grid-column-start: 2;
  width: 100%;
  max-width: 64rem;
  margin-inline-end: auto;
  margin-inline-start: auto;
}
nav {
  grid-row-start: 2;
  position: sticky;
  top: 0;
}
aside {
  grid-column-start: 3;
}
header {
  width: 100%;
}

#__next {
  display: grid;
  row-gap: 1.5rem;
  column-gap: 1.5rem;
  grid-template-rows: 37px 1fr 100px;
  grid-template-columns: 175px 1fr 175px;
  min-height: 100vh;
}

@media (max-width: 1200px) {
  #__next {
    grid-template-columns: 175px 1fr 0px;
  }
}

@media (max-width: 991px) {
  #__next {
    grid-template-columns: 0px 1fr 0px;
  }
}

.rgb {
  background: linear-gradient(
    124deg,
    #ff2400,
    #e81d1d,
    #e8b71d,
    #e3e81d,
    #1de840,
    #1ddde8,
    #2b1de8,
    #dd00f3,
    #dd00f3
  );

  -webkit-animation: rainbow 18s ease infinite;
  -z-animation: rainbow 18s ease infinite;
  -o-animation: rainbow 18s ease infinite;
  animation: rainbow 18s ease infinite;
  background-size: 1800% 1800%;
}

@-webkit-keyframes rainbow {
  0% {
    background-position: 0% 82%;
  }
  50% {
    background-position: 100% 19%;
  }
  100% {
    background-position: 0% 82%;
  }
}
@-moz-keyframes rainbow {
  0% {
    background-position: 0% 82%;
  }
  50% {
    background-position: 100% 19%;
  }
  100% {
    background-position: 0% 82%;
  }
}
@-o-keyframes rainbow {
  0% {
    background-position: 0% 82%;
  }
  50% {
    background-position: 100% 19%;
  }
  100% {
    background-position: 0% 82%;
  }
}
@keyframes rainbow {
  0% {
    background-position: 0% 82%;
  }
  50% {
    background-position: 100% 19%;
  }
  100% {
    background-position: 0% 82%;
  }
}

/* 
For Next.JS image
*/

.rounded {
  border-radius: 50%;
}

a.nounderline {
  text-decoration: none !important;
}