.present__btn {
    display: block;
}

.present__btn {
    width: 120px;
    height: 120px;
    background: url("images/finish_sx.png") center center no-repeat;
    background-size: contain;
    animation: shake 3s infinite;
    border: none;
}

.present__btn._new {
    background: url("images/present_a.gif") center center no-repeat;
    background-size: contain;
    width: 140px;
    height: 140px;
}

.present__btnCont {
    position: fixed;
    bottom: 2rem;
    right: 150px;
    z-index: 200;
}

.present__hide {
    background: #999 url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 0 1 1.414 0L8 6.586 14.293.293a1 1 0 1 1 1.414 1.414L9.414 8l6.293 6.293a1 1 0 0 1-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 0 1-1.414-1.414L6.586 8 .293 1.707a1 1 0 0 1 0-1.414z'/%3e%3c/svg%3e");
    opacity: 0.2;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: 40% auto;
    position: absolute;
    right: -10px;
    top: -10px;
    z-index: 300;
    cursor: pointer;
}

.present__hide:hover {
    opacity: 0.4;
}

@keyframes shake {
    0% {
        transform: translateX(0);
    }
    10% {
        transform: translateX(-3px) rotate(3deg);
    }
    20% {
        transform: translateX(3px) rotate(-2deg);
    }
    30% {
        transform: translateX(-3px) rotate(3deg);
    }
    40% {
        transform: translateX(3px) rotate(-2deg);
    }
    50% {
        transform: translateX(0) rotate(0deg);
    }
    100% {
        transform: translateX(0);
    }
}

@media (max-width: 767px) {
    .present__btn {
        width: 110px;
        height: 110px;
    }

    .present__btnCont {
        bottom: 0.5rem;
        right: 90px;
    }

    .present__hide {
        right: 0;
        top: -30px;
    }
}