Here is my CSS and HTML.
.btn-group button {
  border: 3px solid green;
  padding: 10px;
  background-color: #04AA6D;
  /* Green background */
  border: 1px solid green;
  /* Green border */
  color: white;
  /* White text */
  padding: 10px 24px;
  /* Some padding */
  cursor: pointer;
  /* Pointer/hand icon */
  float: left;
  /* Float the buttons side by side */
}
.btn-group button:not(:last-child) {
  border-right: none;
  /* Prevent double borders */
}
/* Clear floats (clearfix hack) */
.btn-group:after {
  content: "";
  clear: both;
  display: table;
}
/* Add a background color on hover */
.btn-group button:hover {
  background-color: #3e8e41;
}<div class="btn-group">
  <button type="button" class="button1">Faucet</button>
  <button type="button" class="button2">About Nano/Faucet</button>
  <button type="button" class="button3">Donate</button>
</div>
I want to center these buttons under the text in the screen's center! I have tried so many things nothing works for me.
 
     
     
    
 
     
     
     
     
     
    