html{
    scroll-behavior: smooth;
}
body {
    font-family: "Arial";
    line-height: 1.4;
    margin: 0;
    padding: 0;
    background-image: linear-gradient(
  320deg,
  hsl(206deg 100% 51%) 0%,
  hsl(219deg 100% 80%) 20%,
  hsl(223deg 100% 94%) 29%,
  hsl(223deg 100% 94%) 36%,
  hsl(219deg 100% 80%) 43%,
  hsl(206deg 100% 51%) 50%,
  hsl(219deg 100% 80%) 57%,
  hsl(223deg 100% 94%) 64%,
  hsl(223deg 100% 94%) 71%,
  hsl(219deg 100% 80%) 80%,
  hsl(206deg 100% 51%) 100%
);
}
a{
    color: black;
    text-decoration: none;
}
a:visited{
    color: black;
}
a:hover{
    text-shadow: 0px 0px 15px black;
}
h1, h2, h3, h4{
    text-align: center;
    text-shadow: 5px 5px 5px lightslategray;
}
.about-us p{
    font-size: 17px;
}
.galery{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
    align-content: center;
    margin-bottom: 35px;
}
.galery img{
    margin: 5px;
    width: 230px;
    height: 138px;
    box-shadow: 5px 5px 5px black;
    transform: scale(1);
    transition: 0.3s;
}
.galery img:hover{
    box-shadow: 0px 0px 15px hsl(206deg 100% 51%);
    transform: scale(1.05);
}
footer{
    background-color: rgba(0, 0, 0, 50%);
    color: white;
    padding: 25px 25px 50px 25px;
}
ul{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    list-style-type: none;
}
li{
    padding: 8px;
}
.container ul li a{
    color: white;
}
.container ul li a.active{
    font-weight: bolder;
    color: lightskyblue;
    text-shadow: 2px 2px 10px lightskyblue;
}
.container ul li a.active:hover{
    text-shadow: 2px 2px 10px white;
}
.dane{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.dane div{
    padding: 0px 25px 0px 25px;
}
.dane p{
    line-height: 1.8;
}
.dane a{
    color: lightskyblue;
}
iframe{
    border: 0;
    height: 150px;
    width: 300px;
    box-shadow: 5px 5px 10px black;
    transform: scale(1);
    transition: 0.3s;
}
iframe:hover{
    transform: scale(1.05);
}
hr{
    box-shadow: 0px 0px px white;
}