.row {
    margin-bottom: 2%;
}
img {
    width: 30%;
    float: right;
    margin-left: 1em;
}
.header {

   /* border-bottom: #D0E2FF 3px solid; */
    margin-bottom: 0.5em;
    background-color: #2b5b84;
    color: white;
    padding: 2em;
    padding-top: 0.25em;
    padding-bottom: 0.25em;
}
.header h1 {
    font-size: 2em;
}
#page-footer {
    border-top: #2b5b84 3px solid;
    margin-top: 0.25em;
    padding-top: 0.25em;
    }
.topmenu {
    background-color: #e5e5e5;
    margin:0;
    }
.topmenu ul {
    list-style-type: none;
    margin: 0;
    padding: 0.25em;
    padding-top: 0.5em;
    padding-bottom: 0.5em;
    overflow: hidden;
    }
.topmenu ul li{
    display: inline;
}
.topmenu a {
    color: black;
    font-size: 0.8em;
}
.topmenu a:hover {
    color: #007bff;
    font-size: 0.8em;}
.introduction {
    margin-bottom: 2em;
}