.area-code {
    position: relative;
    display: inline-block;
}

.area-code .area-code-main {
    width: 70px;
    height: 36px;
    padding-left: 20px;
    font-size: 14px;
    border: 1px solid #e1e1e1;
    border-radius: 5px;
    cursor: pointer;
    outline: none;
}

.area-code .area-code-list {
    display: none;
    z-index: 1;
    position: absolute;
    width: 270px;
    text-align: left;
    background: #fff;
    border: 1px solid #eee;
}

.area-code .area-code-item {
    padding: 5px 10px;
}

.area-code .area-code-item:hover {
    background: #eee;
    cursor: pointer;
}