@font-face {
  font-family: "NanumSquareNeo";
  src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.eot);
  src: url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.eot?#iefix)
      format("embedded-opentype"),
    url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.woff)
      format("woff"),
    url(https://hangeul.pstatic.net/hangeul_static/webfont/NanumSquareNeo/NanumSquareNeoTTF-bRg.ttf)
      format("truetype");
}

body {
  margin: 0;
  background-color: lightgray;
  font-family: "NanumSquareNeo", sans-serif;
  font-size: 5vmin;
  color: black;
  touch-action: manipulation;
}

div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

a {
  color: black;
  text-underline-offset: 1vmin;
}

input,
button,
select {
  border: none;
  border-radius: 2vmin;
  padding: 0 5vmin;
  font-family: "NanumSquareNeo", sans-serif;
  font-size: 5vmin;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

select {
  text-align-last: center;
}

.m-a {
  margin: auto;
}

.mt-5 {
  margin-top: 5vmin;
}

.mt-10 {
  margin-top: 10vmin;
}

.b-05-lightgray {
  border: 0.5vmin solid lightgray;
}

.bt-05-lightgray {
  border-top: 0.5vmin solid lightgray;
}

.br-05-lightgray {
  border-right: 0.5vmin solid lightgray;
}

.bb-05-lightgray {
  border-bottom: 0.5vmin solid lightgray;
}

.bl-05-lightgray {
  border-left: 0.5vmin solid lightgray;
}

.br-15 {
  border-radius: 15vmin;
}

.pt-10 {
  padding-top: 10vmin;
}

.pb-10 {
  padding-bottom: 10vmin;
}

.w-20 {
  width: 20vmin;
}

.w-30 {
  width: 30vmin;
}

.w-40 {
  width: 40vmin;
}

.w-69 {
  width: 69vmin;
}

.w-80 {
  width: 80vmin;
}

.w-100 {
  width: 100vmin;
}

.h-10 {
  height: 10vmin;
}

.h-30 {
  height: 30vmin;
}

.h-40 {
  height: 40vmin;
}

.mh-100 {
  min-height: 100vh;
}

.bc-dodgerblue {
  background-color: dodgerblue;
  color: white;
}

.bc-lightgray {
  background-color: lightgray;
  color: black;
}

.bc-white {
  background-color: white;
}

.ox-a {
  overflow-x: auto;
}

.fd-r {
  flex-direction: row;
}

.jc-fs {
  justify-content: flex-start;
}

.ai-fs {
  align-items: flex-start;
}

.fs-7 {
  font-size: 7vmin;
}

.color-firebrick {
  color: firebrick;
}