.demo p {
    width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.input {
    padding: 12px;
    width: 300px;
    border: 1px solid #c2c2c2;
    border-radius: 4px;
    box-shadow: 0 0 1px #fff, inset 0 0 2px rgba(0, 0, 0, .15);
    background-color: #F2F2F2;
    font-size: 14px;
}

.emailist {
    border: 1px solid #bdbdbd;
    border-radius: 4px;
    background-color: #fff;
    color: #666;
    font-size: 14px;
    list-style-type: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;

}

.emailist li {
    padding: 2px 11px;
    cursor: pointer;
}

.emailist .on, .emailist li:hover {
    background-color: #eee;
}