JSFiddle - React, Tailwind, and code Playground
HTML
<button class="button" onclick="submit();" type="button">Text button <span></span></button>
CSS
.button{
color: #FFFFFF;
font-family:Arial;
font-size: 10px;
font-weight: normal;
padding: 0;
padding-left: 20px;
height: 36px;
width: 120px;
margin:4px auto auto;
text-align: left;
cursor:pointer;
border:0px;
background: #3ba93d;
background-position: 66px 4px;
background-repeat:no-repeat;
background: #3ba93d; /* fallback */
background: -webkit-gradient(linear, left top, left bottom, from(0,#3ba93d), to(0,#27842a)); /* Saf4+, Chrome */
background-image: -webkit-linear-gradient(top, #3ba93d, #27842a); /* Chrome 10+, Saf5.1+ */
background-image: -moz-linear-gradient(top, #3ba93d, #27842a); /* FF3.6+ */
background-image: -ms-linear-gradient(top, #3ba93d, #27842a); /* IE10 */
background-image: -o-linear-gradient(top, #3ba93d, #27842a); /* Opera 11.10+ */
background-image: linear-gradient(top, #3ba93d, #27842a); /* W3C */
}
.button span {
position: absolute;
top: 17px;
left: 100px;
width: 20px;
height: 24px;
background: url(http://goo.gl/mw5HWR);
}