Add this –
/* After Entry widget
--------------------------------------------- */
.after-entry {
background: #222;
color: #aaa;
margin: 60px 0 20px;
overflow: hidden;
text-align: center;
}
.after-entry .wrap {
padding: 40px;
}
.after-entry a {
color: #fff;
}
.after-entry .widget-title {
color: #fff;
font-size: 30px;
}
.after-entry .enews-widget input {
width: 50%;
}
.after-entry .enews-widget input[type="submit"] {
width: auto;
}