生成蓝色半透明字体加粗卡片样式布局css样式代码并放入gui样式类中

.gui { background-color: rgba(0, 0, 255, 0.5); font-weight: bold; display: flex; justify-content: center; align-items: center; height: 200px; width: 300px; border: 2px solid #000; }