h1,h3 {
    text-align: center;
    font-family: Arial, Helvetica, sans-serif;
}
h1 {
    color: #1e1e1e;
    padding-bottom: 1%;
    padding-top: 1%;
    margin-right: auto;
}
h3 {
    display:block;
    padding-top: 1%;
    padding-bottom: 1%;
    color: White;
    background-color: #2f3136;
}
p {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 110%;
    margin-left: 1%;
    margin-right: 1%;
    margin-bottom: 3%;
}
body {
    background-color: #FFFFFF;
    color: #2f3136;
    margin: auto;
}
.topnav {
overflow: hidden;
background-color: #1e1e1e;
}

.topnav a {
float: left;
display: block;
color: white;
text-align: center;
padding: 14px 16px;
text-decoration: none;
font-size: 17px;
}

.topnav a:hover {
background-color: #FFFFFF;
color: #1e1e1e !important;
}

.active {
background-color: white;
color: #1e1e1e !important;
}

.topnav .icon {
display: none;
}

@media screen and (max-width: 600px) {
.topnav a:not(:first-child) {display: none;}
.topnav a.icon {
float: right;
display: block;
}
}

@media screen and (max-width: 600px) {
.topnav.responsive {position: relative;}
.topnav.responsive .icon {
position: absolute;
right: 0;
top: 0;
}
.topnav.responsive a {
float: none;
display: block;
text-align: left;
}

}