#company-name {
    text-align: center;
    padding: 20px 0;
}

#form {
    width: 350px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid #ccc;
    border-radius: 10px;
    padding: 50px 0 20px;
}

main {
    margin-top: 100px;
}

#company-name>h1 {
    line-height: 50px;
    font-size: 26px;
}

.solve {
    width: 250px;
    overflow: hidden;
    margin: 0 auto;
    line-height: 25px;
}

.f-l {
    float: left;
}

.f-r {
    float: right;
}

.but {
    padding: 10px 0;
}

.description {
    text-align: center;
}

.p-b-2 {
    padding-bottom: 20px;
}

.l-h-3 {
    line-height: 30px;
}

.layui-form-item .code-input {
    width: 100px;
    float: left;
}
.layui-form-item .refresh {
    margin: 10px;
}