body {
    color: #151945;
    overflow: hidden;
}

#not-found::before {
    content: "";
    display: block;
    position: absolute;
    left: calc(50% + 13vh);
    top: 0;
    bottom: 0;
    background-color: #1f75cc;
    width: 200%;
    transform: skew(15deg);
    transform-origin: bottom;
    z-index: -1;
}

.not-found {
    padding-left: 7vw;
}

.images {
    background: url("../img/bubbles.png") no-repeat top left / 90%;
    display: flex;
    justify-content: flex-end;
    padding-right: 7vw;
}

.double_four {
    max-width: 600px;
    width: 42vw;
    transform: translate(0, -17vh);
}

.astronaut {
    margin: 0 auto;
    max-width: 290px;
    width: 20vw;
    position: absolute;
    right: 35%;
    top: 47%;
    animation-name: down_and_up;
    animation-duration: 10s;
    animation-delay: .7s;
    animation-iteration-count: infinite;
    transform: translate(0, calc(-50% - 3vh));
}

@keyframes down_and_up {
    0% {
        top: 47%
    }

    50% {
        top: 52%;
    }

    100% {
        top: 47%
    }
}

@media screen and (max-width: 1200px) {
    .btn {
        color: #1f75cc;
        background-color: white;
        border-color: white;
    }

    .btn:hover {
        color: white;
        background-color: transparent;
    }

    .not-found {
        padding: 15vh 15px 0;
        text-align: center;
        color: white;
    }

    #not-found {
        background: url("../img/bubbles.png") no-repeat top left / cover;
    }

    #not-found::before {
        left: 0;
        transform: 0;
    }

    .images {
        justify-content: center;
        padding: 15vh 0 0;
        align-items: flex-start;
        background: none;
    }

    .double_four {
        transform: none;
    }

    .astronaut {
        right: 50%;
        transform: translate(50%, 0);
    }

    @keyframes down_and_up {
        0% {
            top: 9%
        }

        50% {
            top: 15%;
        }

        100% {
            top: 9%
        }
    }
}

@media screen and (max-width: 576px) {
    br {
        display: none;
    }
    .double_four {
        width: 60vw;
    }
}