html {
  width: 100%;
  height: 1px;
  min-height: 100%;
  background-color: #212121;
  color: #FAFAFA;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 18px;
}
body {
  opacity: 1;
  width: 100%;
  height: 1px;
  min-height: 100%;
  margin: 0;
}
a {
  color: #448AFF;
  text-decoration: none;
  cursor: pointer;
}
a:hover {
  text-decoration: underline;
}

.mainspace {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 0 12px 46px 12px;
  align-items: center;
  min-height: calc(100% - 128px);
}
.content {
  max-width: 800px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  height: 100%;
  max-height: 100%;
  position: relative;
  flex-grow: 1;
}

table {
  width: 100%
}
tr:nth-child(even) {
  background-color: #424242;
  border-radius: 8px;
}

.page_row {
  display: flex;
  flex-direction: row;
  gap: 10px;
  justify-content: center;
  align-items: center;
}