Header background color overlay

This is how you get a background color ovelay for your normal header using CSS.

.site-header, .inside-header {
    position: relative;
}

.site-header:before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background: rgba(255, 255, 255,0);
    background: linear-gradient(174deg, rgba(255, 255, 255, 0) 30%, rgba(0, 212, 255, 1) 100%);
}

Adjust the linear-gradient to suit. This site is great for calculating gradients.

Click here to learn how to create background color overlays for the header element.