* {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', 'Arial';
    color: #212121;

}

nav {
    width: 100%;
    position: absolute;
    height: 100px;
    background-color: rgba(135, 135, 135, 0.26);
    z-index: 1;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

nav img {
    height: 80px;
    margin: 10px;
}

nav a {
    color: #212121;
    text-decoration: none;
    float: right;
    display: block;
    line-height: 100px;
    font-size: 26px;
    text-align: center;
    padding: 0 25px;
}

.bgContainer {
    position: relative;
    text-align: center;
}
.bg {
    width: 100%;
    left: 0;
    top: 0;
    z-index: 0;
    display: block;
    margin-bottom: 50px;
}


.centered {
    color: white;
    width: 100%;
    font-size: 80px;
    position: absolute;
    top: 55%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1000;
  }

.odbody {
    text-align: center;
}

.odbody h1 {
    font-size: 60px;
    font-weight: normal;
}

.odbody table {
    border-collapse: collapse;
    margin-top: 50px;
    margin-bottom: 50px;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
    table-layout: fixed;
    font-size: 30px;
}

.odbody table tr td{
    border: solid;
    border-width: 0 1px;
}

.odbody table tr th{
    font-size: 40px;
    line-height: 90px;
}

.odbody table tr td:first-child{
    border: none;
}

.odbody table tr td:last-child{
    border: none;
}

iframe {
    display: block;
    border: none;
    margin-left: auto;
    margin-right: auto;
    width: 640px;
    height: 360px;
}

.frame {
    top: 0;
    left: 0;
    position: relative;
}

ul {
    margin-right: auto;
    margin-left: auto;
    text-align: center;
    width: 75%;
    margin-bottom: 30px;
}
li {
    font-size: 20px;
    margin: 8px;
}

.obrazky {
    width: 75%;
    margin: 50px auto;
}

.obrazky h1 {
    text-align: center;
    font-size: 60px;
    font-weight: normal;
    margin-bottom: 20px;
}

.obrazky img {
    float: left;
    width: 40%;
    padding: 0 5%;
    margin-bottom: 30px;
}

.info h1 {
    text-align: center;
    font-size: 60px;
    font-weight: normal;
}

.info {
    margin: 30px;
}

.info p {
    text-align:justify;
    font-size: 20px;
    width: 70%;
    margin: 0 auto;
}

.kontakt {
    text-align: center;
    padding: 0 10%;

}

.kontakt h1 {
    text-align: center;
    font-size: 60px;
    font-weight: normal;
}


.kontakt div {
    width: 45%;
    float: left;
    text-align: left;
    margin: 20px;
}
.kontakt div h1 {
    font-size: 20px;
    font-weight: normal;
    text-align: left;
}

.kontakt div p {
    font-size: 40px;
    font-weight: bold;
}