iphone overriding all of my styles on an input[type="submit"]

Question

I have isolated my input[type="submit"] in this JSFIDDLE.

The code as well,

input[type="submit"] {
    width: 100%;
    height: 40px;
    background: #FFD100;
    border-radius: 5px;
    box-shadow: 0 5px 0 #A58B1E;
    border: none;
    font-size: 20px;
    color: #2b2b2b;
    cursor: pointer;
    position: relative;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
}

input[type="submit"]:active, input[type="submit"]:focus {
    box-shadow: 0 3px 0 #A58B1E;
    top: 2px;
    outline: none;
}

Everything look great except, when I checked the site on my iphone. Since my client wanted a responsive website I figured this button I made would look great on every device.

Oh boy, I was so wrong because on my iphone the button is truly hideous. I am including an image to what the mobile view looks like and the url to the site.

Any ideas why this is happening or how I can override it?

---

(Chatfield Drilling Live Site)

Answer 1

You might be looking for:

-webkit-appearance: none;

Answer 2

You need to use -webkit-appearance:none in your button.

Also, if you have round corners at input fields you can use the following CSS:

input {
    -webkit-border-radius:0; 
}