body {
    background-color: rgb(255, 255, 255);
    margin: 0;
  }

figure {
  margin-top: 5%;
}

img {
  width: 250px;
}

h2, h1 {
  text-align: center;
}

  .pics {
     /*width: 300px;*/ 
     display: flex;
     margin: auto;
 
     background-color: #557A87;
     padding-left: 15px;
     padding-right: 55px;
     padding-top: 15px;
     padding-bottom: 15px;
 
     display: flex;
     flex-wrap: wrap;
     justify-content: space-around;
  }

  
  .center {
    text-align: center;
    display: grid;
   
    margin-left: auto;
    margin-right: auto;
    width: 70%;

    background-color: #557A87;
    padding: 20px;

    border: 2px solid rgb(0, 0, 0);
    border-radius: 8px;
  }

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333;
  position: fixed;
  top: 0;
  width: 100%;
}
  
li {
  float: left;
}
  
li a {
  display: block;
  color: rgb(255, 255, 255);
  text-align: center;
  padding: 16px 16px;
  text-decoration: none;
}
  
li a:hover:not(.active) {
  background-color: #6d6d6d;
}
  
  .active {
    background-color: #557A87;
  }

  .round {
    border: 2px solid rgb(0, 0, 0);
    border-radius: 8px;
    padding: 5px;
    background-color: aliceblue;
    text-align: center;
  }

  .round-w {
    border: 2px solid rgb(0, 0, 0);
    border-radius: 8px;
    padding: 5px;
    background-color: rgb(255, 255, 255);
    text-align: center;
  }