button{font-size:11px;
         color:#ffffff; 
         text-align:center;
         padding:6px 7px 6px 7px;
         background-color:#3498db;
         outline:0;
         border:0px;
         border-radius:3px;
         cursor:pointer;  }

   button:hover{background-color:#2471a3;}
 
   button:focus{border:2px solid #5dade2;}

   button:disabled {color:#99a3a4;
                  background-color:#ebedef;
                  border:1px solid #aeb6bf;}