.wp-polls, .wp-polls-form {
    background: #e6e6e6;
    padding: 1em;
    margin-bottom: 1em;
}
.wp-polls ul, .wp-polls ul li {
    list-style:  none !important;
    padding-left: 0 !important;
    margin: 0;
}
.wp-polls ul li input[type=checkbox] {
    margin-right: 1em;
}