.layui-layout-body {
    overflow: hidden;
    background-color: #000
}

.layui-form-pane {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 500px;
    border-radius: 5px;
    margin-top: -200px;
    margin-left: -250px;
    background-color: #fff
}

.layui-form-item {
    width: 400px;
    height: 50px;
    margin: 20px auto
}

.layui-form-pane .layui-input-block {
    height: 50px;
    margin-left: 0
}

.layui-form-pane .layui-input {
    height: 50px
}

.layui-form-item:first-child .layui-input-block {
    color: #424242;
    font-size: 25px;
    text-align: center
}

.layui-form-item img.captcha {
    width: 200px;
    height: 50px;
    box-sizing: border-box;
    border: 1px solid #e6e6e6
}

.layui-form-item:last-child .layui-btn {
    width: calc(100% - 180px);
    height: 50px;
    border-radius: 5px
}

.layui-layout-admin .layui-footer {
    left: 0;
    text-align: center;
    background-color: #fff
}