.body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
}

.navbar1 {
    overflow: hidden;
    
    background-color: navy;
}

    .navbar1 a {
        float: left;
        font-size: 16px;
        color: white;
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
    }

.subnav1 {
    float: left;
    overflow: hidden;
}

    .subnav1 .subnavbtn1 {
        font-size: 16px;
        border: none;
        outline: none;
        color: white;
        padding: 14px 16px;
        background-color: inherit;
        font-family: inherit;
        margin: 0;
    }

    .navbar1 a:hover, .subnav1:hover .subnavbtn1 {
        background-color: #eee;
        color: navy;
    }

.subnav1-content {
    display: none;
    position: absolute;
    left: 0;
    background-color: deepskyblue;
    width: 100%;
    z-index: 1;
}

    .subnav1-content a {
        float: left;
        color: white;
        text-decoration: none;
    }

        .subnav1-content a:hover {
            background-color: #eee;
            color: navy;
        }

.subnav1:hover .subnav1-content {
    display: block;
}