html {
  min-height: 100vh;
  font-family: "Verdana";
  margin: 0;
  padding: 0;
}

.row {
  display: flex;
  align-items: stretch;
  justify-content: center;
  max-width: 500px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.row > div {
  padding: 20px;
  text-align: center;
  flex-grow: 1;
  width: 150px;
  background-color: azure;
}

ul {
  line-height: 1.5;
}

.upload-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%)
}


.upload-form {
  display: flex;
  flex-direction: column;
}

.upload-field {
  cursor: pointer;
}

.upload-btn {
  margin-top: 2em;
  background-color: white;
  padding: 1em 2em; 
  cursor: pointer;
  outline: none;
  border: none;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  border-radius: 7px;
}