.red {
      color: red;
    }

    .orange{
      color: orange; 
    }

    .yellow{
      color: yellow; 
    }

    .green{
      color: green; 
    }

    .blue{
      color: blue; 
    }

    .purple{
      color: purple;
    }

    html,body{
    font-family:"Trebuchet MS", Helvetica, sans-serif;
    text-align:center;
    min-width:260px;
    color:#333;
  }

  img{
    max-width: 100%;
    display: block;
    height: auto;
    margin: auto;
  }

  #main{
    margin:30px auto;
    padding:15px;
    border:0px solid;
    border-radius:5px;
    background:#eee;
  }

  #img-div{
    margin:-5px;
    margin-top:20px;
    width:100%;
    border:5px solid #ADADAD;
    background: #E0E0E0;
  }

  #img-caption{
    margin:15px;
  }
  #headline{
    margin-top:50px;
    text-align:left;
  }
  ul {   
  background: linear-gradient(30deg,#00FFFF,#46A3FF,#8600FF,#FF44FF,#00FFFF);
}