body {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

header {
  display: flex;
  justify-content: space-between;
  width: calc(100% - 40px);
  background-color: #000;
  color: #fff;
  padding: 15px 20px;
  margin: -10px -10px 0;
}

header img {
  width: 150px;
  height: auto;
}

header li {
  display: inline-block;
  font-size: 14px;
  font-weight: bold;
  margin-left: 20px;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: calc(100% - 60px);
  background-color: #efefef;
  padding: 20px 30px;
  margin: 0 -10px -10px;
}

footer div {
  display: flex;
  align-items: center;
}

footer img {
  width: 200px;
  height: auto;
}

footer address {
  font-size: 12px;
  font-style: normal;
  margin-top: 10px;
  margin-left: 20px;
}

footer li {
  display: inline-block;
  margin-left: 30px;
}

main {
  position: relative;
  width: 100vw;
  height: calc(100vh - 86px - 116px);
}

main div {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}