.sigmaweb-btn1 .elementor-button::before{
   content: '';
    width: 20px;
    height: 20px;
    position: absolute;
    right: 82px;
    bottom: calc(50% - 5px);
    border-left: 1px solid #fff;
    border-bottom: 1px solid #fff;
    border-radius: 0 0 0 6px;
    opacity: 0;
    transition: all ease-in-out .3s;
}

.sigmaweb-btn1 .elementor-button::after{
   content: '';
    width: 20px;
    height: 20px;
    position: absolute;
    right: 8px;
    top: calc(50% - 5px);
    border-right: 1px solid #fff;
    border-top: 1px solid #fff;
    border-radius: 0 6px 0 0;
    opacity: 0;
    transition: all ease-in-out .3s;
}

.sigmaweb-btn1 .elementor-button:hover::before {
    opacity: 1;
    bottom: calc(50% - 15px)
}

.sigmaweb-btn1 .elementor-button:hover::after{
    opacity: 1;
    top: calc(50% - 15px)
}