how to make nice buttons css code example

Example 1: html css good button

<button style="background-color: turquoise; border: none; border-radius: 5px; color: #333; /* Dark grey */ padding: 15px 32px">Example button</button>

Example 2: button style css

<div class="pure-button-group" role="group" aria-label="...">
    <button class="pure-button">A Pure Button</button>
    <button class="pure-button">A Pure Button</button>
    <button class="pure-button pure-button-active">A Pure Button</button>
</div>

Example 3: button style css

<button class="pure-button pure-button-disabled">A Disabled Button</button>
<button class="pure-button" disabled="">A Disabled Button</button>