I'm writing a HTML webPage, I use a button and I need to change his background-color on mouseover using a javascript function. Here is the code.
<button onmouseover="funzione(this)">BTN</button>
<script>
funzione(x){
x.style.background-color=#ffffff;
}
</script>
In JavaScript you need get handler to element x e.g.:
var x = document.getElementById("x");
but you should do this with CCS:
button{
background-color: yellow;
}
button:hover{
background-color: lime;
}
This is very basic. You're missing keyword function, and with that style of accessing properties, you need to use camel case. Finally, wrap the color hex within quotes.
function funzione(x){
x.style.backgroundColor= '#ffffff';
}<button onmouseover="funzione(this)">BTN</button>The recommended way is use CSS in production, but if you're just into JavaScript and want to explore, it's fine.
If you want in js:
<button onmouseover="set_color(this)">BTN</button>
<script>
function set_color(x){
x.style.backgroundColor='red';
}
</script>
function funzione(x){
x.style.backgroundColor = "#ffffff";
}<button onmouseover = "funzione(this)">BTN</button>You can do this simply in CSS, its easy, efficient and less code.
<style type="text/css">
.myHoverButton:hover { background-color: #ffffff; }
</style>
<button id="button1" class="myHoverButton">
