@keyframes pop {
    0% {
        scale: 0;
    }
    60% {
        scale: 1.2;
    }
    100% {
        scale: 1;
    }
}

.Textbox {
    background-color: #17171f;
    border-radius: 10px;
    font-family: 'Manrope';
    color: white;
    padding: 20px;
    border: none;
    scale: 1;
    font-size: 12pt;
    animation-name: pop;
    animation-duration: 1s;
    animation-fill-mode: forwards;
    animation-delay: 1s;
    animation-timing-function: ease;
    scale: 0;
    -webkit-box-shadow: 0px 0px 15px 10px rgba(0,0,0,0.15); 
    box-shadow: 0px 0px 15px 10px rgba(0,0,0,0.15);
    min-width: 50vw;
}
.Textbox::placeholder {
    color: #8b8ba8;
    font-family: 'Manrope';
}

@media screen and (max-width: 600px) {
    .Textbox {
        min-width: 80vw;
        transition: .2s min-width ease;
        text-align: center;
    }
    .Textbox::placeholder {
        text-align: center;
    }
}