qss实现登录界面美化

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    //    去掉头部
    this->setWindowFlag(Qt::FramelessWindowHint);
    //    去掉空白部分
    this->setAttribute(Qt::WA_TranslucentBackground);
    ui->lineEdit_2->setClearButtonEnabled(true);

};

Widget::~Widget()
{
    delete ui;
}


void Widget::on_pushButton_clicked()
{
    QMessageBox box;
    //设置文本框的大小
    box.setStyleSheet("QLabel{"
                      "min-width: 200px;"
                      "min-height: 100px; "
                      "font-size:10px;"
                      "text-align:center;"
                      "}");
    if(ui->lineEdit->text() == "admin") {
        if( ui->lineEdit_2->text() == "123456" ){
            //登录界面关闭跳转下一个界面
            emit my_jump_login();
        }else{
            box.setText("<font size='10' color='black'>账号或者密码错误</font>");
            box.setWindowTitle("登录失败");
            box.exec();
        }
    }else{
        box.setText("<font size='10' color='black'>账号或者密码错误</font>");
        box.setWindowTitle("登录失败");
        box.exec();
    }
}

void Widget::on_pushButton_2_clicked()
{
    this->close();
}

void Widget::on_pushButton_3_clicked()
{
    this->showMinimized();
}