JSFiddle - React, Tailwind, and code Playground

HTML

<body>
<header>
    <div id="heading">
        <img src="https://icons.iconarchive.com/icons/ampeross/qetto/64/icon-developer-icon.png">
        <button href="/home/default.html">Services</button>
        <button href="/xrgroups/default.html">Groups</button>
    </div>
</header>
<div id="content">
</div>
</body>

CSS

header {
    margin: 0px -8px -8px -8px;
    position: fixed;
    width: 100%;
    background-color: #395FAA;
}

#heading {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 66px;
    line-height: 66px;
    vertical-align: middle;
}

#heading button {
    height: 50px;
    width: 100px;
    color: white;
    background-color: #2A477F;
    font-weight: bold;
    text-transform: uppercase;
    border: none;
    margin-right: 5px;
}

#content {
    height: 2000px;
}