super-login-buttons.css in Super Login 7

/* Buttons */
#user-login #edit-submit{
  background: url("buttons.png");
  width: 115px;
  height: 35px;   
  border: none;
  font-size: 0;  
}

#user-login #edit-submit:hover{
  background-position: 0 bottom;
}

#user-pass #edit-submit{
  background: url("buttons.png") right 0;
  width: 175px;
  height: 35px; 
  border: none;
  font-size: 0;  
}

#user-pass #edit-submit:hover{
  background-position: right bottom;
}

/* For retina displays */
@media only screen and ( -webkit-min-device-pixel-ratio: 1.3 ),
       only screen and (    min--moz-device-pixel-ratio: 1.3 ),
       only screen and (      -o-min-device-pixel-ratio: 2.6/2 ), /* returns 1.3, see Dev.Opera */
       only screen and (         min-device-pixel-ratio: 1.3 ),
       only screen and ( min-resolution: 124.8dpi ),
       only screen and ( min-resolution: 1.3dppx ){ 
  
  #user-login #edit-submit,
  #user-pass #edit-submit{
      background-image: url("buttons-retina.png");
      -moz-background-size:290px 70px;
      -ie-background-size:290px 70px;
      -o-background-size:290px 70px;
      -webkit-background-size:290px 70px;
      background-size: 290px 70px;      
  }
}

#user-login #edit-submit{
  cursor: pointer;
}