#c3834 {
    position: fixed;
left: -100vw;
    top: 35vh;
    z-index: 3000 !important;
    max-width: fit-content;
    padding: 30px;
    box-shadow: rgba(99, 99, 99, 0.2) 0px 2px 8px 0px;
    background: #007BFF;
    color: white;
    transition: left 0.5s ease;
  }

  #m4228 {
    position: fixed;
    top: 27vh;
    left: 0vw;
    padding: 18px;
    cursor: pointer;
    font-size: 26px;
border-radius: 0 25% 50% 0;
    z-index: 3100;
background-color: #FA7318;
color: #fff;
  }

@media (max-width: 1024px) and (min-width: 768px) {
  #c3834 {
    left: -50vw; 
    padding: 20px !important;
  }
}

@media (max-width: 768px) {
  #m4228 {
    top: 14vh;
  }
  #c3834 {
    left: -100vw;
top: 20vh;
    padding: 20px !important;
    font-size: 14px;
min-width: fit-content !important;
  }
}

<script>
document.addEventListener("DOMContentLoaded", function () {
const button = document.getElementById("m2376");
const menu = document.getElementById("c3955");

if (button && menu) {
button.addEventListener("click", function (e) {
e.preventDefault();
if (menu.style.left === "0px") {
menu.style.left = "-100vw";
} else {
menu.style.left = "0";
}
});
} else {
console.log("Elementen niet gevonden");
}
});
</script>