/*去掉item虚线边框*/
QListWidget, QListView, QTreeWidget, QTreeView {
    outline: 0px;
}
/*设置左侧选项的最小最大宽度,文字颜色和背景颜色*/
QListWidget {
    min-width: 120px;
    max-width: 120px;
    color: white;
    background: black;

}

QPushButton {
    max-width: 120px;
    color: white;
    border-top-left-radius:10px;  
    border-top-right-radius:10px;
    border-bottom-left-radius:10px;
    border-bottom-right-radius:10px;
    background: blue;
}
QPushButton:pressed,
QPushButton:pressed:focus {
    /* 改变背景色 */  
  background-color: #f50057;
  /* 改变边框风格 */  
    border-style:inset; 
    /* 改变边框风格 */  
    border-style:inset;  
}

QPushButton#upload_btn {
    padding: 3px 20px;
    text-align:center;
}


/*被选中时的背景颜色和左边框颜色*/
QListWidget::item:selected {
    background: rgb(52, 52, 52);
    border-right: 4px solid rgb(9, 187, 7);
}
/*鼠标悬停颜色*/
HistoryPanel::item:hover {
    background: rgb(52, 52, 52);
}

/*右侧的层叠窗口的背景颜色*/
QStackedWidget {
    background: rgb(30, 30, 30);
}
/*模拟的页面*/
QLabel {
    color: black;
}
QLineEdit {
    border: 2px solid rgb(52,52,52);
    border-top-left-radius:10px;  
    border-top-right-radius:10px;
    border-bottom-left-radius:10px;
    border-bottom-right-radius:10px;

}