i have a CSS button which i want to link to another html file without Javascript

i have a CSS button how to link to another html file without Javascript Note:
that i am not using html input or button html tags so i dont know how ,helpful if you would link a article or the solution code full
the html and css code below:

most of the code is just css animation from a site which is opensource and free

<!DOCTYPE html>
<html lang="en">
<body>

<h1 class="box-main"> Time :   9:30 AM </h1>
<h1 style="position:relative;  right:80px;  top:40px;" class="box-main">

</h1>

 <h1 class="box-main"> Date: 1 / 12 / 2021

 </h1>
 <h1 class="box-main"> Place: Random X and Z

 </h1>
</body>

    <meta charset="UTF-8">
    <title>Booking</title>
  <style>
    body {
    margin: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: right;
    background-color: black;
    }

    nav ul {
        list-style-type: none;
        margin: 0;
        padding: 0;
    }

    nav ul li {
        --c: white;
        color: var(--c);
        font-size: 16px;
        border: 0.3em solid var(--c);
        border-radius: 0.5em;
        width: 6em;
        height: 3em;
        text-transform: uppercase;
        font-weight: bold;
        font-family: sans-serif;
        letter-spacing: 0.1em;
        text-align: center;
        line-height: 3em;
        position: relative;
        overflow: hidden;
        z-index: 1;
        transition: 0.5s;
        margin: 1em;
    }

    nav ul li span {
        position: absolute;
        width: 20%;
        height: 100%;
        background-color: var(--c);
        transform: translateY(150%);
        border-radius: 50%;
        left: calc((var(--n) - 1) * 25%);
        transition: 0.5s;
        transition-delay: calc((var(--n) - 1) * 0.1s);
        z-index: -1;
    }

    nav ul li:hover {
        color: black;
    }

    nav ul li:hover span {
        transform: translateY(0) scale(2);
    }

    nav ul li span:nth-child(1) {
        --n: 1;
    }

    nav ul li span:nth-child(2) {
        --n: 2;
    }

    nav ul li span:nth-child(3) {
        --n: 3;
    }

    nav ul li span:nth-child(4) {
        --n: 4;
    }
    .box-main {
            display: flex;
            justify-content: center;
            align-items: center;
            text-align: center;
            color: White;
            max-width: 80%;
            margin: auto;
            height: 80%;
    }

    text-big {
        font-size: 10px;
    }



  </style>
</head>

<body>

<nav>
  <li>
    <ul>



<nav>
  <ul>
    <li>
     this is the button text

     book
      <span></span><span></span><span></span><span></span>


</body>
</html>

Thanks in advance please ask if you need any more information