body {
    background: #2BC0E4;  /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, #EAECC6, #2BC0E4);  /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, #EAECC6, #2BC0E4); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    text-align: center;

    }

img{
    height: 16px;
    width: 16px
}

ul li{
    text-align: match-parent;
}

img:hover{
    filter: brightness(.75);
    transform: scale(1.25) 

}

a:hover{
    filter: brightness(.5);
}