limit input characters amount
<p><input placeholder="Title" id="input-title" class="text-input" maxlength="80" onkeyup="count_down(this)" name="input" ></p>
<span id="count" style="float: right; font-family: Raleway; font-size:20px; font-weight:600; margin-top:-5px;">80</span><br>
<script>
function count_down(obj){
let element = document.getElementById('count');
element.innerHTML = 80 - obj.value.length;
if(80 - obj.value.length < 5){
element.style.color = "firebrick";
}else{
element.style.color = "#333";
}
}
</script>