Hyperlink mouse hover effect

a {
    color: #ff5200;
    text-decoration: none;
    -webkit-transition: all 0.2s ease-in;
    -moz-transition: all 0.2s ease-in;
    -o-transition: all 0.2s ease-in;
    transition: all 0.2s ease-in;
}
a:hover,
a:focus {
    color: #000;
    text-decoration: none;
    opacity: .75; 
    -webkit-opacity: .75;
    -moz-opacity: .75;
    filter: alpha(opacity=75);
}

Button transfor/enlarge

.xxxx {
    transform: scale(1.05,1.05);
}

Mouse/Cursor Pointer

.pointer {
    cursor: pointer;
}