@media screen and (max-width: 767.9px) {
    body {
        height: 100vh !important;
        overflow: hidden;
    }
    .container-custom {
        width: 100% !important;
    }
    h2 {
        text-align: center;
        position: relative;
        left: -7px;
    }
    .container-custom > a {
        position: relative;
        bottom: -40px;
    }
    p {
        color: dimgray;
    }
    .logo-tg {
        transform: scale(0.4, 0.4);
    }
    .text-position {
        position: relative;
        top: -100px;
    }
    .moon-position {
        position: relative;
        top: -60px;
        left: -10px;
    }
    button {
        position: relative;
        bottom: -180px;
        transform: scaleY(1.2);
        transform: scaleX(0.9);
    }
    footer {
        position: relative;
        bottom: -130px;
    }
}
body {
    background-color: rgb(23, 33, 43);
}
/* CSS case */
#box {
    height: 250px;
    padding: 0;
}
#box2 {
    position: relative;
    bottom: -50px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    width: 25%;
}
#img {
    height: 250px;
    width: 100%;
    margin: 0;
}
.link {
    text-decoration: none;
}
.text1 {
    color: dimgray;
    margin-bottom: 20px;
    display: block;
    margin-top: 0;
    padding-top: 0;
    position: relative;
    top: -45px;
}
.text {
    margin-top: 0;
    padding-bottom: 0;
    color: dimgray;
    display: block;
    top: -70px;
}
.text0 {
    margin-bottom: 5px;
    padding-bottom: 0;
}