<!-- Documento HTML-->
<!DOCTYPE html>
<html lang="es">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" /><!-- Etiqueta para adaptar a @media -->
<LINK REL="stylesheet" TYPE="text/css" HREF="estiloscalculadora.css"><!-- Enlace hoja estilos -->
</head>
<body>
<!-- Empieza codigo calculadora html-->
<form name="calculator">
<h3>Calculadora <a href="#">Internetedadinero.com</a></h3>
<p>Haz algun calculo para ver el resultado.</p>
<input type="textfield" name="ans" value="">
<br>
<input type="button" value="1" onClick="document.calculator.ans.value+='1'">
<input type="button" value="2" onClick="document.calculator.ans.value+='2'">
<input type="button" value="3" onClick="document.calculator.ans.value+='3'">
<input type="button" value="+" onClick="document.calculator.ans.value+='+'">
<br>
<input type="button" value="4" onClick="document.calculator.ans.value+='4'">
<input type="button" value="5" onClick="document.calculator.ans.value+='5'">
<input type="button" value="6" onClick="document.calculator.ans.value+='6'">
<input type="button" value="-" onClick="document.calculator.ans.value+='-'">
<br>
<input type="button" value="7" onClick="document.calculator.ans.value+='7'">
<input type="button" value="8" onClick="document.calculator.ans.value+='8'">
<input type="button" value="9" onClick="document.calculator.ans.value+='9'">
<input type="button" value="*" onClick="document.calculator.ans.value+='*'">
<br>
<input type="button" value="0" onClick="document.calculator.ans.value+='0'">
<input type="reset" value="c">
<input type="button" value="/" onClick="document.calculator.ans.value+='/'">
<input type="button" value="=" onClick="document.calculator.ans.value=eval(document.calculator.ans.value)">
</form>
</body>
</html>
<!-- Finaliza codigo calculadora html -->
<!-- Documento CSS-->
form { width: 100%;
max-width: 400px;
text-align: center;
border: solid 1px #c2c2c2;
padding-bottom: 10px;
margin: auto;
background: #fafafa;
}
input[type=textfield] { width: 75%;
padding: 16px 32px;
font-size: 16px;
margin: 8px 0;
border: 1px solid silver;
border-radius: 1px;
text-align: left;
color: #333;
background: #ccc;
}
input[type=button], input[type=submit], input[type=reset] { background-color: #4CAF50;
border: none;
color: white;
padding: 16px 32px;
font-size: 16px;
min-width: 21%;
text-decoration: none;
margin: 4px 2px;
cursor: pointer;
}
input[type=button]:hover, input[type=submit]:hover, input[type=reset]:hover { background-color: #333;
}
<!-- Finaliza codigo calculadora CSS-->
Crear cuenta
