#feedback_mobile{
    display: none;
}
@media screen and (max-width: 680px){
    .scroll-top{
        display: none;
    }

    #feedback_mobile{
        position: fixed;
        right: 20px;
        bottom: 20px;
        width: 48px;
        height: 48px;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 5;
        transition: .5s;
        cursor: pointer;
        color: white;
        font-size: 20px;
        border-radius: 50%;
        background-color: #000;
        box-shadow: 0 2px 3px 3px rgba(0, 0, 0, .102);
    }
}