JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<button class="button">Galerie</button>
<button class="button">O mne</button> 
</div>

CSS

.button {
    width: 200px;
    transition-duration: 0.5s;
    border: 1px solid black;
    font-size: 30px;
    border-radius: 130px;
    padding: 15px 25px;
    background-color: white;
    color: black;
    text-align: center;
    margin: 20px;

}
.button:hover {
    background-color: black;
    color: white;
}

div{
  position:fixed;
}