body {
  font-family: Arial, sans-serif;
  padding: 40px;
 
margin: 0;
  
  height: 100vh;
  
  background-image: url('bg.jpg');
  background-size: cover;
 
  background-position: center;
  
  background-repeat: no-repeat;
 
}
.powitanie  {
height: 400px;
width: 675px;
background-color: #ffae00;
border-radius: 100px;
border: 10px solid rgb(143, 93, 0);
animation: flow 3s forwards;
align-items: center;
justify-content: center;
display: flex;
text-align: center;
flex-direction: column;
}

h1 {
  color: #333;
}
@keyframes flow {
0% {
transform: translateY(0);
}
50% {
transform: translateY(25vh);

}
100% {
  transform: translateY(25vh)
}
}
.alingpowitania {
align-items: center;
display: flex;
justify-content: center;
}
.powitanieguzik {
  height: 100px;
  width: 200px;
  font-size: 75px;
  background-color: #ffae00;
  border: 8px solid rgb(148, 89, 0);
  border-radius: 10px;
}
.navbar {
  height: 50px;
  position: fixed;
  display: flex;
  justify-content: space-between;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #ffae00;
  
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
 
  z-index: 1000;
  padding: 0;
  margin: 0;
  border: 3px solid rgb(179, 116, 0);
  
}
.navbar-button {
  background-image: url('logogtav.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 100px;
  height: 50px;
  border: none;
  cursor: pointer;
  color: transparent;
  background-color: #ffae00;
  
  
}
.linkgra {

  padding: 2px;
  font-size: 25px;
  text-decoration: none;
}
.historiaopis {
  display: none;
 
  height: 320px;
  width: 300px;
  background-color: #ffae00be;
  border-radius: 10px;
  border: 7px solid #a56300;
  text-align: center;
  font-size: 17px;
  
}
.container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 20px;
  margin-top: 50px;
 
  max-width: 900px;
  
  margin-left: auto;
  margin-right: auto;
  
}

.historiaopis {
  grid-column: 1 / 3;
  
  grid-row: 1;
  
  
}
.specyfikacja {
display: none;
  height: 320px;
  width: 300px;
  background-color: #ffae00be;
  border-radius: 10px;
  border: 7px solid #a56300;
  text-align: center;
  font-size: 17px;
  grid-column: 3 / 4;
  grid-row: 1;
}
.kebso {
  margin-top: 800px;
  margin-left: 45vw;
 
}