<body>
<input type="text" id="text1" Value="This is textbox">
<br />
<br >
<button id="myButton">Click Me</button>
<button onclick="location.reload()">Reset</button>
</body>
$(document).ready(function()
{
$("#myButton").click(function()
{
$(":text").css({'font-family':'Comic sans ms','font-weight':'bold'});
});
});