(Squarespace) How to add a Gradient line on top of Footer

[tuanphan]

To add a Gradient Line on Top of Footer, like this.

You can use this code to Custom CSS box.

footer.sections:before {
    content: "";
    height: 5px;
    width: 100%;
    display: block;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
}