<div class="selectParent">
<select>
<option value="1">Option 1</option>
<option value="2">Option 2</option>
</select>
</div>
.selectParent{
width:80px;
overflow:hidden;
background: #d0e4f7;
background: -moz-linear-gradient(top, #d0e4f7 0%, #73b1e7 24%, #0a77d5 50%, #539fe1 79%, #87bcea 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#d0e4f7), color-stop(24%,#73b1e7), color-stop(50%,#0a77d5), color-stop(79%,#539fe1), color-stop(100%,#87bcea));
background: -webkit-linear-gradient(top, #d0e4f7 0%,#73b1e7 24%,#0a77d5 50%,#539fe1 79%,#87bcea 100%);
background: -o-linear-gradient(top, #d0e4f7 0%,#73b1e7 24%,#0a77d5 50%,#539fe1 79%,#87bcea 100%);
background: -ms-linear-gradient(top, #d0e4f7 0%,#73b1e7 24%,#0a77d5 50%,#539fe1 79%,#87bcea 100%);
background: linear-gradient(to bottom, #d0e4f7 0%,#73b1e7 24%,#0a77d5 50%,#539fe1 79%,#87bcea 100%);
}
.selectParent select{
width: 100px;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
padding: 2px 2px 2px 2px;
border: none;
background: transparent url("http://cdn1.iconfinder.com/data/icons/cc_mono_icon_set/blacks/16x16/br_down.png") no-repeat 60px center;
}
デモ