you can do it using css... In the HTML page you should added

<input type="submit" value="Send"/>

then , you need to add this text to in the same HTML file on in another css file..

<style>
input[type="submit"]{
/* change these properties to whatever you want */
background-color: #555;
color: #fff;
border-radius: 10px;
}
</style>

Hope that will help you

you can do it using css... In the HTML page you should added

<input type="submit" value="Send"/>

then , you need to add this text to in the same HTML file on in another css file..

<style>
input[type="submit"]{
    /* change these properties to whatever you want */
    background-color: #555;
    color: #fff;
    border-radius: 10px;
}
</style>

Hope that will help you