how can I insert an icon to the button. What are my attempt to cover the button again, the icon.
/* Buttons */
input.form-submit,
a.button,
.field-name-field-shop-mail .field-items a,
.link-wrapper a {
border: none;
cursor: pointer;
height: 28px;
line-height: 28px;
color: white;
padding: 0 15px;
margin: 0 auto 8px;
display: -moz-inline-stack;
display: inline-block;
vertical-align: middle;
*vertical-align:auto;
zoom: 1;
*display:inline;
text-align: center;
background-image:-moz-linear-gradient(63% 0% -90deg,rgb(208,70,70) 0%,rgb(205,54,54) 99%);
background-image:-webkit-gradient(linear,63% 0%,63% 100%,color-stop(0, rgb(208,70,70)),color-stop(0.99, rgb(205,54,54)));
background-image:-webkit-linear-gradient(-90deg,rgb(208,70,70) 0%,rgb(205,54,54) 99%);
background-image:-o-linear-gradient(-90deg,rgb(208,70,70) 0%,rgb(205,54,54) 99%);
background-image:-ms-linear-gradient(-90deg,rgb(208,70,70) 0%,rgb(205,54,54) 99%);
background-image:linear-gradient(-90deg,rgb(208,70,70) 0%,rgb(205,54,54) 99%);
-moz-border-radius:3px;
-webkit-border-radius:3px;
border-radius:3px;
-moz-box-shadow:0px 1px 0px rgb(163,41,41) ,0px 2px 2px rgba(0,0,0,0.21);
-webkit-box-shadow:0px 1px 0px rgb(163,41,41) ,0px 2px 2px rgba(0,0,0,0.21);
box-shadow:0px 1px 0px rgb(163,41,41) ,0px 2px 2px rgba(0,0,0,0.21);
-ms-filter:"progid:DXImageTransform.Microsoft.gradient(startColorstr=#ffd04646,endColorstr=#ffcd3636,GradientType=0)
progid:DXImageTransform.Microsoft.dropshadow(OffX=0,OffY=1,Color=#ffa32929,Positive=true)
progid:DXImageTransform.Microsoft.dropshadow(OffX=0,OffY=2,Color=#36000000,Positive=true)";
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#ffd04646,endColorstr=#ffcd3636,GradientType=0)
progid:DXImageTransform.Microsoft.dropshadow(OffX=0,OffY=1,Color=#ffa32929,Positive=true)
progid:DXImageTransform.Microsoft.dropshadow(OffX=0,OffY=2,Color=#36000000,Positive=true);
}