body {
    background-color : white
}

header {
    display: flex;
    align-items: center;
    background-color: #191970;
    border-style: outset;
    border-width: medium;
    padding: 0.5em;
    margin-bottom: 2ex;
    font-family: verdana,arial,helvetica;
    font-size: x-large;
    color: #48D1CC;
}

header img {
    vertical-align: middle;
}

header span {
    margin-left: auto;
}

nav {
    padding: 1em 5em;
    background-image: url("3Kelvin.gif");
    text-align: right;
}

nav p {
    align-items: center;
    color: red;
    text-align: right;
}

nav p img {
    margin: 1ex 1em;
    vertical-align: middle;
    border-style: solid;
    border-color: powderblue;
}

nav p a {
    font-size: large;
    color: mediumblue;
}

p.box {
    text-align: justify;
    align-items: center;
    padding: 1ex 1em;
    margin: 2ex 4em;
    border-width: thin;
    border-style: none;
    background-color: #E0E0FF;
}

footer {
    margin-top: 4ex;
    font-size: small;
}