CSS whatsapp

#whatsapp {
                position: fixed;
                right: 20px;
                bottom: 20px;
                z-index: 2;
            }
            .whatsapp__icon {
                --width_height: 50px;
                --diff: 15px;
                width: var(--width_height);
                height: var(--width_height);
                font-size: calc(var(--width_height) - var(--diff));
                line-height: calc(var(--width_height) - var(--diff));
                background-color: #0DC143;
                color: #ffffff;
                display: flex;
                align-items: center !important;
                justify-content: center !important;
                border-radius: 50rem;
            }