In mozilla my button not look good as it shown in chrome - html

Question

I want to show my button in Mozilla like Chrome so please help me what will I do for it.
This is my code.
CSS:
.green {
background: linear-gradient(to bottom, #9CD645 0%, #8AC530 100%) repeat scroll 0 0 rgba(0, 0, 0, 0);
border: 1px solid #82B436;
}
.large {
font-size: 18px;
}
.btn {
border: 1px solid #82B436;
border-radius: 25px;
box-shadow: 0 1px rgba(99, 159, 8, 0.35);
color: #508400;
display: inline-block;
font-weight: bold;
padding: 3px 12px;
text-decoration: none;
text-transform: uppercase;
}
.green {
background-color: #8CC63F;
}
.btn span {
background: url("images/icon_arrows.png") no-repeat scroll 0 0 rgba(0, 0, 0, 0);
display: block;
float: right;
height: 18px;
margin: 5px;
width: 18px;
}
HTML:
<a href="smoodees" class="btn large green">
Check out our Smoodees
<span></span>
</a>

Answer 1

Checkout this fiddle:
http://jsfiddle.net/realdeepak/gvC9z/1/
or For browser compatibility in firefox, you can use css hack like this:
#-moz-document url-prefix() {
.large {
font-size: 17px;
}
}
Or Try this, And fix minor css padding alignment as per your screen:
<style type="text/css">
.green {
background: linear-gradient(to bottom, #9CD645 0%, #8AC530 100%) repeat scroll 0 0 rgba(0, 0, 0, 0);
border: 1px solid #82B436;
}
.large {
font-size: 18px;
}
.btn {
border: 1px solid #82B436;
border-radius: 25px;
box-shadow: 0 1px rgba(99, 159, 8, 0.35);
color: #508400;
display: inline-block;
font-weight: bold;
padding: 3px 30px 3px 10px;
text-decoration: none;
text-transform: uppercase;
position: relative;
}
.green {
background-color: #8CC63F;
}
.btn span {
background: url("images/icon_arrows.png") no-repeat scroll 0 0 rgba(0, 0, 0, 0);
height: 18px;
margin: 5px;
width: 18px;
position: absolute;
top: 0;
right: 0;
}
</style>

Answer 2

Changing the answer completely.
Try this structure:
<a href="smoodees" class="btn large green">
<p id="text">Check out our Smoodees</p>
<span></span>
</a>
and change the CSS like so:
#id{
float: left
}
span{
float: left
}
edit: For multiple buttons, change the ID to a Class