body {
    background-color: black;
    background-image: url("/media/sat.jpg");
    background-position-x: center;
    background-size: 1024px;
    background-repeat: repeat-y;
    overflow: hidden;
    color: whitesmoke;
}

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.marquee {
    width: 1024px;
    overflow: hidden;
}

.marquee>p {
    position: relative;
    animation: marquee 5s linear infinite;
}

@keyframes marquee {
    0% {
        left: 100%;
    }

    100% {
        left: -100%;
    }
}

.banner {
    padding-top: 100px;
    padding-bottom: 150px;
    width: 768px;
    margin: auto;
}

.image-center {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.text-center {
    text-align: center;
}

button {
    cursor: pointer;
    font-size: 20px;
    color: whitesmoke;
    border-radius: 5px;
    border: 1px solid rgb(128, 128, 128);
    transition: transform 0.2s;
    background: radial-gradient(100% 100% at center top, rgba(255, 255, 255, 0.1) 50%, rgba(0, 0, 0, 0) 51%),
        linear-gradient(rgba(55, 65, 75, 0.75) 50%, rgba(0, 10, 20, 0.75));
}

button:hover {
    transform: scale(200%);
    background: radial-gradient(100% 100% at center top, rgba(255, 255, 255, 0.1) 50%, rgba(0, 0, 0, 0) 51%),
        linear-gradient(rgba(55, 65, 75, 1) 50%, rgba(0, 10, 20, 1));
}

.navbar {
    width: 98%;
    margin-top: 100px;
    border-radius: 25px;
    border: 1px solid rgb(128, 128, 128);
    border-top-style: none;
    /* background: linear-gradient(rgba(200, 200, 200, 0.3) 50%, rgba(155, 155, 155, 0.3)); */
    background: radial-gradient(100% 100% at center top, rgba(255, 255, 255, 0.1) 50%, rgba(0, 0, 0, 0) 51%),
        linear-gradient(rgba(55, 65, 75, 0.75) 50%, rgba(0, 10, 20, 0.75));
    transition: border-radius 1.5s ease
}

/* container */
.right-sidebar {
    display: flex;
    flex-wrap: wrap;
}

/* columns */
.right-sidebar>* {
    width: 100%;
}

/* tablet breakpoint */
@media (min-width:768px) {
    .right-sidebar>*:nth-child(1) {
        width: calc(100% / 3 * 2);
    }

    .right-sidebar>*:nth-child(2) {
        width: calc(100% / 3);
    }
}