body {
              background: rgb(125, 198, 205);
              color: rgb(45, 45, 45);
              padding: 10px;
              font-family: arial;
          }
          header {
              font-size: 1.5em;
              font-weight: bold;
          }
 
          #all-contents {
              max-width: 800px;
              margin: auto;
          }
 
          /* navigation menu */
          nav {
              background: rgb(239, 80, 41);
              margin: 0 auto;
              display: flex;
              padding: 10px;
          }
          h1 {
              display: flex;
              align-items: center;
              color: rgb(255, 255, 255);
              flex: 1;
              margin: 0;
          }
          #nav-ul {
              list-style-image: none;
          }
          .nav-li {
              display: inline-block;
              padding: 0 10px;
          }
          .nav-a {
              text-decoration: none;
              color: #fff;
          }
 
          /* main container area beneath menu */
          main {
              background: rgb(245, 238, 219);
              display: flex;
          }
          .content {
              flex: 1;
              padding: 15px;
          }

                   /* portfolio styles */
         .content h1 {
             color: black;
         }

         #portfolio {
             list-style-type: none;
             padding-left: 0;
         }

         #portfolio li {
             background: #fff;
             padding: 10px;
             border-radius: 10px;
             margin-bottom: 10px;
         }

         #portfolio li:hover {
             background: #eee;
         }

         #portfolio a {
             text-decoration: none;
             color: #454545;
         }

         body {
    background: rgb(125, 198, 205);
    color: rgb(45, 45, 45);
    padding: 10px;
    font-family: Arial, sans-serif;
}

#all-contents {
    max-width: 800px;
    margin: auto;
}

/* navigation menu */
nav {
    background: rgb(239, 80, 41);
    margin: 0 auto;
    display: flex;
    padding: 10px;
}

h1 {
    display: flex;
    align-items: center;
    color: white;
    flex: 1;
    margin: 0;
}

#nav-ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.nav-li {
    display: inline-block;
    padding: 0 10px;
}

a {
    text-decoration: none;
    color: #fff;
}

/* main container area beneath menu */
main {
    background: rgb(245, 238, 219);
    display: flex;
    margin-top: 20px;
}

.sidebar {
    margin-right: 25px;
    padding: 10px;
}

.sidebar-img {
    width: 200px;
}

.content {
    flex: 1;
    padding: 15px;
}

/* interests section styles */
#interests {
    border: 4px silver ridge;
    padding: 8px;
    margin-top: 20px;
}

h2, h3 {
    margin: 0px;
}