.boxes,
.boxes cbox,
.boxes .try img {
    width: 100%
}

.instructions {
    padding: 10px;
    background-color: #e11e26;
    border-radius: 4px;
    color: #fff;
    margin-top: 20px
}

.boxes {
    margin: 10px auto;
    max-width: 800px
}

.box-o-t {
    position: absolute;
    top: -34%
}

.boxes .discover .box-o-b {
    z-index: 1;
    position: relative
}

.boxes .iphone {
    width: 76%;
    height: auto;
    position: absolute;
    z-index: 0;
    top: -20%;
    left: 12%;
    -webkit-transition-duration: .7s;
    transition-duration: .7s
}

.boxes .discover>.iphone {
    top: -60%
}

.boxes>.try {
    position: relative;
    display: inline-block;
    width: 23.8%;
    -webkit-transition-duration: .2s;
    transition-duration: .2s;
    cursor: pointer
}

@media(max-width:767px) {
    .boxes>.try {
        width: 32.5%
    }

    .boxes>.try:nth-child(-n+4) {
        display: none
    }
}

@media(max-width:479px) {
    .boxes>.try {
        width: 32%
    }
}

@media(max-width:319px) {
    .boxes>.try {
        width: 48%
    }

    .boxes>.try:nth-child(-n+5) {
        display: none
    }
}

.div_img_gift {
    width: 100%;
    text-align: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 5;
    display: none;
    align-items: center;
    justify-content: center
}

.img_gift {
    display: none;
    width: 70%;
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
    -webkit-animation-name: rotateIn;
    animation-name: rotateIn;
    margin: 0 auto
}

@-webkit-keyframes rotateIn {
    0% {
        -webkit-transform-origin: center;
        transform-origin: center;
        -webkit-transform: rotate3d(0, 0, 1, -200deg);
        transform: rotate3d(0, 0, 1, -200deg);
        opacity: 0
    }

    100% {
        -webkit-transform-origin: center;
        transform-origin: center;
        -webkit-transform: none;
        transform: none;
        opacity: 1
    }
}

@keyframes rotateIn {
    0% {
        -webkit-transform-origin: center;
        transform-origin: center;
        -webkit-transform: rotate3d(0, 0, 1, -200deg);
        transform: rotate3d(0, 0, 1, -200deg);
        opacity: 0
    }

    100% {
        -webkit-transform-origin: center;
        transform-origin: center;
        -webkit-transform: none;
        transform: none;
        opacity: 1
    }
}

@keyframes tapa_superior {
    0% {
        -webkit-transform-origin: center;
        transform-origin: center;
        -webkit-transform: rotate3d(0, 0, 1, -200deg);
        transform: rotate3d(0, 0, 1, -200deg);
        opacity: 0
    }

    100% {
        -webkit-transform-origin: center;
        transform-origin: center;
        -webkit-transform: none;
        transform: none;
        opacity: 1
    }
}

.boxes {
    background-size: cover;
    border-radius: 20px;
    position: relative;
    text-align: center
}

.try {
    position: relative;
    margin: 20px 0;
    transform: rotate(140deg);
}

.try>div {
    position: absolute
}

.try .caja {
    position: relative
}

.caja_trasera {
    z-index: 0
}

.caja_tapa {
    z-index: 1
}

.caja {
    z-index: 2
}

.caja_gift {
    z-index: 2
}

.boxes .try.abierta>.caja_tapa {
    animation: tapa_superior 2s forwards
}

.boxes .try.premiazo>.caja_gift {
    animation: tapa_superior 8s infinite alternate
}

@keyframes tapa_superior {
    0% {
        top: 0
    }

    30% {
        top: -40px
    }

    100% {
        top: -40px
    }
}

@media(max-width:500px) {
    @keyframes tapa_superior {
        0%  {
            top: 0
        }

        30% {
            top: -30px
        }

        100% {
            top: -30px
        }
    }
}