.animated-gradient-primary
{
    background: linear-gradient(270deg, #131022, #3e2949);
    background-size: 400% 400%;

    -webkit-animation: BackgroundGradient 20s ease infinite;
    -moz-animation: BackgroundGradient 20s ease infinite;
    animation: BackgroundGradient 20s ease infinite;
}

@-webkit-keyframes BackgroundGradient
{
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}

@-moz-keyframes BackgroundGradient
{
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}

@keyframes BackgroundGradient
{
    0%{background-position:0% 50%}
    50%{background-position:100% 50%}
    100%{background-position:0% 50%}
}