css-color-rgba
RUN
<!DOCTYPE html> <html> <head> <style> h1 { background-color: rgba(23,123,213,0.5); color: rgba(255,255,255,0.9); border: 1px solid rgba(1,1,1,0.3); } </style> </head> <body> <h1>Đây là thẻ h1</h1> </body> </html>
PHÓNG TO