Is there any mistake in the code what i have written???
<!Doctypehtml> <html> <head> <title>simple Calci</title> <link href="style.css" rel="stylesheet" type="text/css"> <style> body{background:url(file:///home/shaan/Downloads/math.jpg);width:100%;background-repeat:no-repeat;} .calci{background:rgba(0,0,0,0.7);border:1px solid white;padding-left:100px;width:87%;height:300px;padding-top:20%;margin-left:100px;margin-top:110px;} .calci>screen{width:50px;border:1px solid blue;height:20px;margin:0px;padding:0px;background-color:rgba(0,0,0,0.8);} </style> </head> <body> <div class="calci"> <div class="screen"> </div> <div class="key-board"> <table class="table"> <tr> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> </tr> <tr> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> </tr><tr> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> </tr><tr> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> </tr><tr> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> <th></th> </tr> </table> </div> </div> </body> <html>