header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding:0 20px;
}

#list-flex{
  display:flex;
  flex-direction: row;
  gap:30px;
}

#list-flex li{
  border-bottom: 1px solid #000;
  list-style-type: none;
}

header img{
  max-width:40px;
}