.mailbox {
    width: 690px;
    margin-top: 40px;
    margin-left: 40px;
}

.mailbox .form_item {
    margin-bottom: 15px;
    display: inline-block;
    width: 50%;
}

.mailbox .form_item:nth-child(1) {
    display: inline-block;
    width: 44%;
}

.mailbox .form_item:nth-child(2) {
    display: inline-block;
    width: 50%;
    /* margin-left: 130px; */
}

.mailbox .form_item:nth-child(3) {
    display: inline-block;
    width: 44%;
}

.mailbox .form_item:nth-child(4) input {
    display: inline-block;
    width: 247px;
}

.mailbox .form_item:nth-child(5) {
    display: inline-block;
    width: 44%;
}

.mailbox .form_item:nth-child(6) input {
    display: inline-block;
    width: 72%;
}

.mailbox .form_item:nth-child(2) input {
    width: 72%;
}

.mailbox .form_item:nth-last-child(3) {
    display: block;
}

.mailbox .form_item:nth-last-child(3) {
    width: 100%;
}

.mailbox .form_item:nth-last-child(3) input {
    width: 557px;
}

.mailbox .form_item:nth-last-child(2) {
    width: 100%;
}

.mailbox .form_item:nth-last-child(1) {
    width: 100%;
}

.mailbox .form_item label {
    display: inline-block;
    width: 80px;
    line-height: 35px;
    vertical-align: middle;
}

.mailbox .form_item span {}

.mailbox .form_item input {
    height: 25px;
    width: 173px;
    border: 0;
    border: 1px solid #ccc;
    padding-left: 7px;
}

.layui-form-select {
    display: inline-block;
}

.layui-form-select .layui-input {
    height: 27px !important;
    border-color: #ccc;
    width: 256px !important;
}

.layui-form-select dl dd.layui-this {
    background-color: #006ebd;
}

.mailbox .form_item textarea {
    vertical-align: middle;
    border-color: #ccc;
    width: 560px;
    height: 136px;
    margin-top: 3px;
    padding-left: 5px;
    border: 1px solid #ccc;
}

.mailbox .form_item button {
    background-color: #006ebd;
    border: 0;
    color: white;
    padding: 7px 20px;
    border-radius: 5px;
    float: right;
    margin-right: 39px;
}

.mailbox .form_item button:hover {
    cursor: pointer;
    background-color: #0691f5;
}