html, 

body{
    font-family: Geneva, sans-serif;
    margin: 0;
    background-color: rgb(214, 222, 229);
    }
    
header{
    background-color: #052049;
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(back1.jpg);
    padding: 30px;
    text-align: center;
    }
    
h1{
    font-size: 90px;
    color: aliceblue;
    }

h2{
    text-decoration: underline;
    text-decoration-color: #1059c7;
}
    
header img{
    border-radius: 800px;
    width: 300px;
    border: 10px solid #FF4040;
    }

.content{
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    color: rgb(11, 14, 16);
    font-family: Cambria, serif;
    text-decoration:rgb(26, 62, 194);
    }
    
img.big-image{
    max-width: 100%;
    }
    
p.caption{
    font-size: 16px;
    color: rgb(26, 62, 194);
    font-style: italic;
    text-align: center;
    }
    
ul{
    list-style: none;
    padding: 0;
    margin: 0;
    }
    
a{
    color: red;
    text-decoration: none;
    }
    
footer{
    margin-top: 20px;
    padding: 40px 20px;
    background-color: #E6E6E6;
    }

footer ul{
    text-align: center;
    }

footer ul li{
    display: inline-block;
    margin: 0 5px;
    }