.s2a-date {
  position: relative;
}

.s2a-date > input {
  padding-right: 40px;
  -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
     -moz-box-sizing: border-box;    /* Firefox, other Gecko */
          box-sizing: border-box;         /* Opera/IE 8+ */
}

.s2a-date-btn,
.s2a-clear-btn {
  position: absolute;
  top: 50%;
  right: 8px;
  margin-top: -10px;
}

.s2a-clear-btn {
  right: 25px;
}