.Button,
input[type="submit"],
input[type="button"],
button {
  background-color: #878787  /* Grey */
  color: #FFFFFF  /* White text */
  border: none ;
  border-radius: 8px ;
  padding: 12px 24px ;
  font-size: 1.1em ;
  text-transform: uppercase;
  cursor: pointer;
}

.Button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
button:hover {
  background-color: #6E6E6E /* Darker grey */
}
<div class="fb-page" data-href="https://www.facebook.com/sweetesttownintexas" data-tabs="timeline" data-width="" data-height="" data-small-header="true" data-adapt-container-width="true" data-hide-cover="false" data-show-facepile="true"></div>
*/
.navigationOuterContainer .navigationContainer input.nextButton, .navigationOuterContainer .navigationContainer input.typeButton, .navigationOuterContainer .navigationContainer input[type=submit], .loginButton, .typeButton, input[type=submit] {background-color: #ff0000 !important; color:#ffffff !important;} /* button color */
.navigationOuterContainer .navigationContainer input.nextButton:hover, .navigationOuterContainer .navigationContainer input.typeButton:hover, .navigationOuterContainer .navigationContainer input[type=submit]:hover, .loginButton:hover, .typeButton:hover, input[type=submit]:hover {background-color: #ff0000 !important;} /* hover color */