body {
    margin: 0;
}
.header{
    width: 100%;
        background-color: rgb(17, 153, 119);

}
.nav_container {
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2; 
    color: white;
}
.nav_container a {
    margin-right: 10px;
    text-decoration: none;
    color: white;
    position: relative;
}
.nav_container a:hover {
    cursor: pointer;
    text-decoration: underline;
    color: rgb(52, 52, 52);
}
.prvni_button{
    margin-right: 10%;
}
.druhy_button{
    margin-right: 10%;
}
.treti_button{
    margin-right: 10%;
}
.ctvery_button{
    margin-right: 10%;
}
.Pozadi {
    position: relative;
    width: 100%;
    border-radius: 5px;
    filter: brightness(0.5);
    z-index: 1; 
    height: 100vh;
}
.IvanoFrankivsk {
    color: white;
    font-size: 36px;
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2; 
    font-family: 'Sixties', sans-serif;
}
.Prvni{
  color: black;
  font-size: 16px;
  text-align: left;
  position: absolute;
  top: 120%;
  left: 50%;
  transform: translate(-80%,-5%);
  z-index: 3;}
.Druhy{
  Top: 100px;
  z-index: 4;
  }
  
  @keyframes moveRight {
  from { left: 0; }
  to { left: 500px; }
}

.moving-element {
  position: relative;
  animation: moveRight 2s infinite alternate;
}