html {
    overflow: hidden;
}

.moving-shape {
    width: 100px; 
    aspect-ratio:1;
    background-color: rgba(128, 128, 128, 0.7); 
    opacity: 0.4;
    position: absolute;
    top: -500px;
    z-index: -1;
    animation: rotate-fall 5s linear; 
    animation-iteration-count: 6;
    border: none;
    outline: none;
    border-radius: 0;
    box-shadow: none;
}

@keyframes rotate-fall {
    0% {
        transform: translateY(0) rotate(0deg);
        border-radius: 0;
    }
    50% {
        transform: translateY(800px)rotate(900deg);
        border-radius: 50%;
    }
    100% {
        transform: translateY(calc(1600px)) rotate(1800deg);
        border-radius: 0; 
    }
}
  
.container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}
  
.container::-webkit-scrollbar {
    display: none;
}

.column {
    position: relative;
    text-align: center;
    width: 100%;
    height: auto;
    box-sizing: border-box;
}


h1 {
    font-size: 32px;
    line-height: 40px;
}

h2 {
    font-size: 22px;
    line-height: 30px;
}

.button {
    width: 80%;
    max-width: 300px;
}

/* For devices larger than 400px */
@media (min-width: 400px) {
    h1 {
        font-size: 38px;
        line-height: 46px;
    }

    h2{
        font-size: 26px;
        line-height: 32px;
    }
}
  
/* For devices larger than 550px */
@media (min-width: 550px) {
    .column,
    .columns {
        margin-left: calc(50% - 200px);
        width: 400px;
    }

    .column:first-child,
    .columns:first-child {
        margin-left: calc(50% - 200px);
    }

    h1 {
        font-size: 48px;
        line-height: 56px;
    }

    h2{
        font-size: 36px;
        line-height: 42px;
    }
}