.ted-wtsp-btn {
    width: 50px;
    height: 50px;
    z-index: 111111;
    position: fixed;
    bottom: 20px;
    left: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media only screen and (max-width: 767px) {

    .ted-wtsp-btn {
        width: 45px;
        height: 45px;
        bottom: 12px;
        left: 12px;
    }
}