ul.nav {
    margin: 0;
    padding: 0;
    list-style: none;
    height: 6vh;
    line-height: 6vh;
    background: transparent; /* you can change the backgorund color here. */
    font-family: Arial, Helvetica, sans-serif;
    font-size: 15px;
}

    ul.nav li {
        border: 2px solid purple;
        border-top-left-radius: 25px;
        border-top-right-radius: 25px;
        border-bottom-left-radius: 25px;
        border-bottom-right-radius: 25px;
        float: left;
    }

ul.nav a {
    display: block;
    padding: 0 4vw;
    color: black;
    text-decoration: none;
}

    ul.nav a:hover,
    ul.nav li.current a {
        background: purple;
        border-top-left-radius: 25px;
        border-top-right-radius: 25px;
        border-bottom-left-radius: 25px;
        border-bottom-right-radius: 25px;
    }

body {
    font-family: Arial, Helvetica, sans-serif;
}


* {
    box-sizing: border-box;
}

.container {
    display: flex;
}

.content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}


.h1Style {
    margin-top: 5px;
    margin-bottom: 5px;
    font-size: 40px;
    text-align: left;
}


.h2Style {
    margin-top: 10px;
    margin-bottom: 10px;
    font-size: 30px;
    text-align: left;
    text-underline-position: auto;
}

.h3Style {
    margin-top: 5px;
    margin-bottom: 5px;
    font-size: 25px;
    text-align: left;
    text-underline-position: auto;
}
.pStyle {
    margin-top: 5px;
    margin-bottom: 5px;
    font-size: 20px;
    text-align: left;
}