body{
    font-family: Arial, sans-serif;
    background-color: #a4cbff;
    color: #030300;
}
header{
    background-color: #ffce47;
    color: #3cff00;
    padding: 20px;
    text-align: center;
}
nav{
    background-color: #ff0000;
    padding: 10px;
}
nav ul{
    list-style-type: none;
    margin: 0;
    text-align: center;
}
nav ul li{
    display: inline;
    margin: 0 10px;
}
nav ul li a{
    text-decoration: none;
    color: #00c3ff;
    font-weight: bold;
}
nav ul li a:hover{
color: #0000ff;
}
main{
    padding: 20px;
}
h1{
    color: #ff0000;
} 
h2{
    color: #00a2ff;
}
strong{
    color: #00a2ff;
}
table{
    width: 100%;
    border-collapse:collapse;
    margin-top: 20px;
}
table th,td{
    border: 1px solid #000000;
}
th, td{
    padding: 10px;
    text-align: left;
}
th{
    background-color: #4c90eb;
}
img{
    width: 400px;
    height: auto;
    margin: 20px 0;
    display: block;
}
footer{
    background-color: #b3d4ff;
    color: #000000;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}
footer a{
    color: #00a2ff;
    text-decoration: none;
}
footer a:hover{text-decoration: underline;}