form > div {
  margin-bottom: 10px;
}

input[type="radio"] {
  width: 20px;
  height: 20px;
  margin: 0 10px 0 0;
  cursor: pointer;
  flex-shrink: 0;
}
#sizeBox > div {
  padding: 8px 12px;       
  min-height: 5px;        
  display: flex;
  align-items: center;
}

#sizeBox label {
  cursor: pointer;
  padding: 4px 0;
}