.no-click () {
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.pos-r () {
    position: relative;
    display: block;
}

.pos-a () {
    position: absolute;
    display: block;
}