* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #ffffff;
}

header {
  top: 0;
  margin-top: -40px;
  margin-bottom: 30px;
}

header img {
  width: 100%;
  height: auto;
  display: block;
}

.container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  padding: 16px;
}
.container .logo,
a {
  width: calc(50% - 8px);
  max-width: 36%;
  height: auto;
  /* height: auto; */
}
.container img {
  width: 100%; 
  height: auto;
  object-fit: contain;
  display: block;
}

.QR-code {
  margin-top: 20px;
}
.logo img {
  margin-bottom: -76px;
}
.logo {
  display: flex;
}


@media (min-width: 600px) {
  .main-container {
    max-width: 700px;
    margin: 0 auto;
  }
  header {
    margin-top: -80px;
  }

  .container a {
    width: calc(25% - 12px); 
    max-width: 100%;
    height: auto;
  }

  .logo img {
    margin-bottom: -40px;
  }
}