body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14pt;
    line-height: 1.5;
}

header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    justify-items: center;
    align-items: center;
    background-image: -webkit-linear-gradient(#E0E0E0,#cfd8df);
    text-align: center;
    position: fixed;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0,0,0,.5);
}

main {
    padding: 2em 10%;
    padding-top: 6em;
}

ul {
    justify-items: center;
    align-items: center
}

.wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-columns: repeat(2, [col-start] 1fr);
    grid-template-columns: 2em;
  }

  .item1 {
    grid-column: col-start  1 / span 1;
    grid-row: 1
  }
  .item2 {
    grid-column: col-start  2 / span 5;
    grid-row: 1
  }
 

.logo {
    grid-column: 1;
}

.button_close {
    grid-column: 3;
    text-align: right;
    padding-right: 3em;
 }

.button_switch {
    grid-column: 2;
    text-align: center;
}

.logo img {
    width: 5em;
    vertical-align: middle;
    padding: 4px 0;
}

.copyright {
    font-family: Arial;
    color: #666;
}

h1 {
    font-family:'Arial';
    color: #0a0a0a;
    position: center;
    text-align: center;
}

h3 {
    font-family: Arial;
    color: #0a0a0a;
}
  
.contact-label {
    font-family: Arial;
    color: #666;
    font-weight: bold;
}


a {
    text-decoration: none;
    font-family: Arial;
    color: #666;
    text-underline-position: none; 
    max-width:fit-content;
    width: 100%;
}

a:hover {
    color: #f2f2f2;
}      

iframe {
    width: 30em;
    height: 21em;
    border:1em;
}

   @media screen and (max-width: 770px) {
    main {
        padding: 0.5%;
        padding-top: 8em;
    }
    .wrapper{
        display: table;
        text-align: center;
        grid-template-rows: 1em;
    }
    .item1 {
        min-inline-size: 3em;
    }
    .item2 {
        min-inline-size: 3em;
    }

    iframe {
        width: 18em;
        height: 18em;
        border:1em;
    }
}

   @media screen and (max-width: 568px) {

    main {
        padding: 0.5%;
        padding-top: 8em;
    }
    .logo {
        font-size: 10pt;
    }
    body {
        font-size: 12pt;
    }
    .wrapper{
        display: table;
        text-align: center;
        grid-template-rows: 1em;
    }
    .item1 {
        min-inline-size: 3em;
    }
    .item2 {
        min-inline-size: 3em;
    }
    iframe {
        width: 20em;
        height: 22em;
        border:1em;
    } 
}

@media screen and (max-width: 375px) {
    main {
        padding: 0.5%;
        padding-top: 8em;
    }
    .logo {
        font-size: 10pt;
    }
    body {
        font-size: 12pt;
    }
    .wrapper{
        display: table;
        text-align: center;
        grid-template-rows: 1em;
    }
    .item1 {
        min-inline-size: 3em;
    }
    .item2 {
        min-inline-size: 3em;
    }
    iframe {
        width: 18em;
        height: 18em;
        border:1em;
    }
   
}

@media screen and (max-width: 330px) {
    main {
        padding: 0.5%;
        padding-top: 8em;
    }
    .logo {
        font-size: 10pt;
    }
    body {
        font-size: 12pt;
    }
    .wrapper{
        display: table;
        text-align: center;
        grid-template-rows: 1em;
    }
    .item1 {
        min-inline-size: 3em;
    }
    .item2 {
        min-inline-size: 3em;
    }
    iframe {
        width: 10em;
        height: 20em;
        border:1em;
    }   
}