<style type="text/css">
label {
  display: block;
  padding-left: 15px;
  text-indent: -15px;
}
input {
  width: 13px;
  height: 13px;
  padding: 0;
  margin:0;
  vertical-align: bottom;
  position: relative;
  top: -1px;
  *overflow: hidden;
}
</style>
<form>
  <div>
    <label><input type="checkbox" /> Label text</label>
  </div>
</form>