@charset "utf-8";

html,
body {
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  position: relative;
}
#cnn {
  width: 300px;
  height: 300px;
  text-align: center;
  position: absolute;
  top: calc(50% - 150px);
  left: calc(50% - 150px);
  color: #99c;
}
h2, a {
  font-family: 'Noto Sans JP', "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", "Meiryo", sans-serif;
  font-weight: normal;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}

.loader {
  position: relative;
  display: inline-block;
  margin: 0 12.5% 10px;
  width: 50px;
  height: 50px;
  border: 2px solid #99c;
  border-radius: 50%;
  animation: spin 0.75s infinite linear;
}
.loader::before,
.loader::after {
  left: -2px;
  top: -2px;
  display: none;
  position: absolute;
  content: '';
  width: inherit;
  height: inherit;
  border: inherit;
  border-radius: inherit;
}
a {
  display: inline-block;
  text-decoration: none;
  color: #99c;
  border-bottom: 1px dotted #99f;
}
.loader {
  border-top-color: transparent;
}
.loader::after {
  display: block;
  border-color: transparent;
  border-top-color: #99c;
  animation: spin 1.25s infinite linear reverse;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}