* {
    box-sizing: border-box;
  }

html {
    height: 100%;
    width: 100%;
    background: whitesmoke;
    color: black;
    font-family: Tahoma, monospace;
}

body {
    margin: 0;
}


.content {
    max-width: 1000px;
    margin: auto;
    text-align: justify;
}

h1 {
    max-width: 800px;
    margin: auto;
    text-align: center;
}

ul.navbar {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: black;
}

li.navbar-btn {
    float: left;
}

li a.navbar-link {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

li a:hover.navbar-link {
    background-color: #f7d003;
}
#navImage {
    height: 25px;
    width: 25px;
    padding: 0px 0px;
}

footer {
    background-color: #333333;
    color: #fff;
    padding: 20px;
    text-align: center;
}

footer a {
    color: #fff;
    text-decoration: none;
    margin-right: 20px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    padding: 0 4px;
}

/* Create four equal columns that sits next to each other */
.column {
    flex: 25%;
    max-width: 25%;
    padding: 0 4px;
}

.column img {
    margin-top: 8px;
    vertical-align: middle;
}

/* Responsive layout - makes a two column-layout instead of four columns */
@media (max-width: 800px) {
    .column {
        flex: 50%;
        max-width: 50%;
    }
}

/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
@media (max-width: 600px) {
    .column {
        flex: 100%;
        max-width: 100%;
    }
}