* {
  box-sizing: border-box;
}

body{
  display: block;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  height: 90vh;
  background-color: white;
}

.tartalom {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

/* ############ Nav bar ##############*/

nav {
  grid-column: 1 / 13;
  position: sticky; 
  width: 100%;
  margin: 0;
  display: block;
}

nav ul {
  background-color: #eee;
  overflow: hidden;
  margin: 0;
  padding: 0;    
}

ul.topnav li {
  list-style: none;
  float: left;
}

ul.topnav li a {
  display: block;
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  min-height: 12px;
  text-align: center;
  padding: 10px;
  text-transform: uppercase;
  color: #666;
}

/* ul.topnav li:last-child a {
  color: red;
} */

ul.topnav li a.nyelv {
  color: red;
}

ul.topnav li a:hover {
  background-color: white;
  color: #666;
}

#aktívlap {
  background-color: white;
}

header {
  grid-column: 1 / 13;
}

h1 {
  font-size: 1.5em;
  text-align: center;
}

img {
  width: 100%;
  height: auto;
}

.shContainer {
  grid-column: 1 / 8;
  grid-row: 3 / 5;
  display: flex;
  max-width: 800px;
  border-radius: 10px;
  overflow: hidden;
  margin: 5px;
  position: relative;
}

.slider {
  display: flex;
}

#prevBtn {
  cursor: pointer;
  position: absolute;
  top: 50%;
  left: 2%;
  z-index: 10;
  width: auto;
  padding: 10px;
  color: white;
  background-color: gray;
  font-weight: bold;
  font-size: 20px;
  border-radius: 4px;
  opacity: 0.8;
 
}

#nextBtn {
  cursor: pointer;
  position: absolute;
  top: 50%;
  right: 2%;
  z-index: 10;
  width: auto;
  padding: 10px;
  color: white;
  background-color: gray;
  font-weight: bold;
  font-size: 20px;
  border-radius: 4px;
  opacity: 0.8;
}

#prevBtn:hover,
#nextBtn:hover {
  background-color: rgba(0, 0, 0, 0.5);
}

.thumbframe {
  grid-row: 3 / 5;
  grid-column: 11 / 13;
  margin: 5px;
}

.thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 5px;
  margin: 5x auto;
  max-height: 533px;
}

img.thumbnail {
  max-width: 120px;
  margin: 2px;
  border-radius: 6px ;
  opacity: 0.6;
}

img.thumbnail:first-child {
  opacity: 1;
}

.thumbnail:hover {
  opacity: 1;
}

p {
  font-size: small;
  padding: 5px;
}

.szöveg {
  grid-column: 8 / 11;
  grid-row: 3 / 5;
  margin: 5px;
  border-style: solid;
  border-radius: 10px;
  border-color: gray;
}

.fejléc {
  text-align: center;
  background-color: gray;
  padding: 10px 15px;
  color: white;
  text-transform: uppercase;
  font-size: 15px;
  
}

.áltszöveg {
  
}

.leírás {
  
}

.részletek {

}

.footer {
  grid-column: 1 / 13;
  margin: 0;
  display: block;
  background-color: #eeeeee;
  text-align: center;
  color: #666;
  font-size: 15px;
  font-weight: 800;
  min-height: 12px;
  padding: 10px;
  text-transform: uppercase;
}

.teloszam {
  max-width : 220px;
  }

.teloszam.img {
  
}

.formula {
  grid-column: 1 / 7;
  background-color: rgb(245, 245, 245);
  margin: 20px;
  padding: 20px;
  border-radius: 10px;
}

.üzen {
  text-align: center;
}

p1 {
  font-size: 15px;
}

.contact-form {
  margin: 20px auto 0px auto;
  width: 80%;
}

.contact-form label {
  font-size: 12px;
  display: inline-block;
  margin-bottom: 5px;
}

.contact-form input {
  padding: 8px 15px;
  outline: none;
  border: none;
  border-bottom: 2px solid #ccc;
  background: rgb(255, 255, 255);
  font-size: 14px;
  border-radius: 3px;
  margin-bottom: 10px;
  width: 100%;
}

.contact-form input:focus {
  border-bottom: 2px solid #1a883f;
}

.contact-form textarea {
  padding: 12px 15px;
  outline: none;
  border: none;
  border-bottom: 2px solid #ccc;
  background: rgb(255, 255, 255);
  font-size: 12px;
  border-radius: 3px;
  width: 100%;
  font-family: inter;
  font-weight: normal;
  resize: none;
}

.contact-form textarea:focus {
  border-bottom: 2px solid #1a883f;
}

.contact-form button {
  font-size: 19px;
  width: 100%;
  margin-top: 25px;
  border: none;
  padding: 12px 20px;
  background-color: #22b352;
  color: #fff;
  border-radius: 3px;
  cursor: pointer;
  transition: 0.2s ease-in-out;
  border-bottom: 3px solid #1a883f;
}

.contact-form button:hover {
  background-color: #1a883f;
  border-bottom: 3px solid #22b352;
}

.térképcont {
  grid-column: 7 / 13;
  margin: 20px;
  padding: 20px;
  border-radius: 10px;
  background-color: rgb(245, 245, 245);
}

.térkép {
  margin: 20px;
}

iframe {
  width : 100%; 
  height : 17em; 
  style : border: 0; 
  }

  @media only screen and (max-width : 850px) {

    .shContainer, .thumbframe, .szöveg, .formula, .térképcont{
      grid-column: 1 / 13;
      grid-row: auto;
    }
  .thumbs {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    align-content: center;
  }
  .szöveg {
    height: 13em;
  }
  }