* {
    box-sizing: border-box;
  }
  
  .row::after {
    content: "";
    clear: both;
    display: table;
  }
  
/* For mobile phones: */
[class*="col-"] {
  width: 100%;
}

@media (min-width: 1px) and (max-width: 950px) {
  .headimage {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
    }
  .heading {
    font-size:50px;
    text-align: center;
  }
  .menu li {
    margin-top: 20px;
    margin-bottom: 20px;
  }
  .sideimg {
    display: block;
    margin-left: auto;
    margin-right: auto;
    
    width: 50%;
  }

  .content {
    width: 100%;
    padding: 20px;
    text-align: center;
  }
}

  @media only screen and (min-width: 950px) {
    /* For desktop: */
    .col-1 {width: 8.33%;}
    .col-2 {width: 16.66%;}
    .col-3 {width: 25%;}
    .col-4 {width: 33.33%;}
    .col-5 {width: 41.66%;}
    .col-6 {width: 50%;}
    .col-7 {width: 58.33%;}
    .col-8 {width: 66.66%;}
    .col-9 {width: 75%;}
    .col-10 {width: 83.33%;}
    .col-11 {width: 91.66%;}
    .col-12 {width: 100%;}

    .headimage {
      float: right;
    }
    .heading {
      float: left;
      font-size: 80px;
    }

    .sideimg {
      float: left;
      margin: 50px;
      margin-top: 20px;
    }

    .content {
      float: right;
      padding: 20px;
      margin-right: 20px;
      margin-top: 20px;
    }

    .right {
      float: right;
    }

    .left {
      float:left;
    }
  }

  html {
    font-family: verdana;
  }

  body {
    margin: 0px;
  }

  h1 {
    text-align: center;
    margin: 50px;
  }
  
  .header {
    background: rgb(137, 199, 219);
    color: rgb(30, 50, 50);
    border-bottom-color:rgb(30, 50, 50);
    border-bottom-width: 5px;
    border-bottom-style: solid;
    float: left;
    width: 100%;
  }

  .menu {
    margin: 0 0 0 -30px;
    padding: 0;
    display: flex;
    background-color: rgb(30, 50, 50);
    border-bottom-color:rgb(30, 50, 50);
    border-bottom-width: 5px;
    border-bottom-style: solid;
  }

  .menu ul {
    list-style-type: none;
    color: rgb(137, 199, 219);
    text-align: center;
    margin: 0px;
    width: 100%;
  }

  .menu li {
    float: left;
    padding:20px;
    
  }

  a {
    background-color: white;
    color: rgb(137, 199, 219);
    border-color:rgb(30, 50, 50);
    border-style:solid;
    border-width: 5px;
    text-decoration: none;
    padding: 20px 60px 20px 60px;
    max-width: 100px;
  }

  a:hover {
    color:rgb(30, 50, 50);
    background-color:rgb(137, 199, 219);
  }

  .content {
    color:rgb(30, 50, 50);
    background-color: rgb(137, 199, 219);
  }