use different css if div width below code example
Example 1: how to make navbar visible above all divs
.flexnav{
-webkit-padding-start: 0px;
-webkit-margin-before: 0px;
-webkit-margin-after: 0px;
margin-top: 0px;
margin-right: auto;
margin-bottom: 0px;
margin-left: auto;
width:90%;
position: relative; /* <-- Added */
z-index: 1; /* <-- Added */
}
Example 2: how to make all div same height
<html>
<head>
<title>Web page</title>
</head>
<body>
<div id="divContainer">
<div id="divOne">
<p>Paragraph 1</p>
<p>Another Paragraph</p>
</div>
<div id="divTwo">
<p>Paragraph 2</p>
</div>
</div>
</body>
<style>
#divContainer {
display: flex;
}
#divOne {
background-color: red;
}
#divTwo {
background-color: blue;
}
</style>
</html>