.glow-btn {
    position: relative;
    &::before {
        position: absolute;
        content: "";
        top: 0;
        left: 0;
        height: 100%;
        width: 100%;
        border-radius: 50%;
        z-index: -1;
        animation: button-pulse 2s infinite cubic-bezier(0.4, 0, 1, 1) both;
        color: red;
    }
}