.button {
background-color: #4CAF50; /* Green */
border: none;
color: white;
padding: 15px 32px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
}.placeholder-box {
position: relative;
display: block;
width: 300px;
min-height: 150px;
margin-top: 50px;
padding: 30px;
border: 1px solid #888;
border-radius: 10px;
box-sizing: border-box;
box-shadow: 0 0 8px 0 rgba(0,0,0,0.25);
}
.placeholder-box p {
text-align: center;
margin: 0 0 15px;
}
.placeholder-box ul {
margin: 0;
}
/* Button */
button {
display: block;
border: solid white;
border-width: 0 10px;
border-radius: 0;
background: green;
color: white;
font-size: 18px;
margin: -60px auto 15px;
padding: 15px;
}/* Add style when button is focused or hovered */
button:focus,
button:hover {
background-color: #0077ff;
color: #e0efff;
}<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><a class="pure-button pure-button-primary" href="#">A Primary Button</a>
<button class="pure-button pure-button-primary">A Primary Button</button>