.backgroundGrad{
    position: fixed;
    height: 100vh;
    width: 100vw;
    z-index: -10;
}

svg{
    width: 100%;
}

svg .st0 {
    fill: #fff;
}

svg .st1 {
    fill: none;
    stroke: #000;
    animation: borderWidth 5s infinite;
}

@keyframes borderWidth {
    0% {
        stroke-width: 1px;
    }

    50% {
        stroke-width: 50px;
    }

    100% {
        stroke-width: 1px;
    }
}