body {
    body {
        width: 90%;
        max-width: 900px;
        margin: auto;
      }
}

header {
    position:sticky;
    top:0;
  }

h1 {
    background-color:  rgb(54, 51, 51);
    height: 300px;
    color: whitesmoke;
    background-repeat: no-repeat;
    background-size:cover;
    font-family: 'Times New Roman', Times, serif;
    font-size: 30px;
    text-align: left;
    margin-top: 0%;
    margin-bottom: 0%;
}


.container4 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-width: 250px;
    column-gap: 10px;
}


.card4 {
    break-inside: avoid;
    page-break-inside: avoid;
    background-color:rgb(50, 49, 48);
    padding: 10px;
    margin: 0 0 1em 0;
    border-radius: 3%;
}

.note4 {
    display: grid;
    grid-template-columns: 1fr 3fr;
    grid-gap: 20px;
}



h3 {
    text-align: center;
    color:white;
    line-height:100px;
    margin:0;
}

html {
    background-color: peachpuff;
}



.links {
    width: 100%;
    max-width: 900px;
    margin:auto;
    background-color: rgb(116, 176, 202);
    height: 50px;
  }


  
  
  
  
  body {
    width: 90%;
    max-width: 900px;
    margin: auto;
  }
  
  header {
    position:sticky;
    top:0;
  }

  
  .container {
      height: 1600px;
      width: 100%;
      background-color: rgb(24, 23, 23);
  }
  
  .bigcard {
      background-color: rgb(24, 23, 23);
      padding-left: 50px;
      max-width: 640px;
      padding-top: 50px;
      margin-right: 0px;
      color: white;
      margin-left: 100px;
      height: 250px;
      padding-right: 20px;
  }
  
  footer {
      background-color: rgb(47, 42, 42);
      height: 200px;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr 1fr;
      padding-left: 150px;
      color: white;
  }
  
  .links {
    width: 100%;
    max-width: 900px;
    margin:auto;
    background-color: rgb(116, 176, 202);
    height: 50px;
  }
  
  nav {
    float: right;
  }
  
  nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  }
  
  nav li {
    display:inline-block;
    margin-left: 5px;
    padding-top: 12px;
    margin-right: 25px;
  }
  
  
  html {
    background-color: rgba(0, 0, 0, 0.623);
  }

  
  
  .displayed-img {
    border-radius: 5px;
    width: 300px;
    padding-left: 0px;
    padding-top:0px;
    padding-right: 0px;
    background-color: blue;
    margin-left: 160px;
    margin-top: 20px;
  }