html{
    overflow-y: hidden;
}
.buttoncolor{
    background: #56CCF2;  /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, #2F80ED, #56CCF2);  /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, #2F80ED, #56CCF2); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */    
}