.faded:after {
    content: "";
    position: absolute;
    display: block;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-collapse: separate;
}

.faded.faded-left:after {
    box-shadow: inset 25px 0 25px -16px;
}

.faded.faded-right:after {
    box-shadow: inset -25px 0 25px -16px;
}

.faded.faded-top:after {
    box-shadow: inset 0 25px 25px -16px;
}

.faded.faded-bottom:after {
    box-shadow: inset 0 -25px 25px -16px;
}

.faded.faded-left.faded-right:after {
    box-shadow: inset 25px 0 25px -16px, inset -25px 0 25px -16px;
}

.faded.faded-left.faded-top:after {
    box-shadow: inset 25px 25px 25px -16px;
}

.faded.faded-right.faded-bottom:after {
    box-shadow: inset -25px -25px 25px -16px;
}

.faded.faded-top.faded-right:after {
    box-shadow: inset -25px 25px 25px -16px;
}

.faded.faded-top.faded-bottom:after {
    box-shadow: inset 0 25px 25px -16px, inset 0 -25px 25px -16px;
}

.faded.faded-left.faded-bottom:after {
    box-shadow: inset 25px -25px 25px -16px;
}

.faded.faded-top.faded-right.faded-bottom:after {
    box-shadow: inset -25px 0 25px 16px;
}

.faded.faded-left.faded-right.faded-bottom:after {
    box-shadow: inset 0 -25px 25px 16px;
}

.faded.faded-left.faded-top.faded-bottom:after {
    box-shadow: inset 25px 0 25px 16px;
}

.faded.faded-left.faded-top.faded-right:after {
    box-shadow: inset 0 25px 25px 16px;
}

.faded.faded-all:after, .faded.faded-left.faded-top.faded-right.faded-bottom:after {
    box-shadow: inset 0 0 25px 16px;
}

.faded.faded-narrow.faded-left:after {
    box-shadow: inset 25px 0 25px -10px;
}

.faded.faded-narrow.faded-right:after {
    box-shadow: inset -25px 0 25px -10px;
}

.faded.faded-narrow.faded-top:after {
    box-shadow: inset 0 25px 25px -10px;
}

.faded.faded-narrow.faded-bottom:after {
    box-shadow: inset 0 -25px 25px -10px;
}

.faded.faded-narrow.faded-left.faded-right:after {
    box-shadow: inset 25px 0 25px -10px, inset -25px 0 25px -10px;
}

.faded.faded-narrow.faded-left.faded-top:after {
    box-shadow: inset 25px 25px 25px -10px;
}

.faded.faded-narrow.faded-right.faded-bottom:after {
    box-shadow: inset -25px -25px 25px -10px;
}

.faded.faded-narrow.faded-top.faded-right:after {
    box-shadow: inset -25px 25px 25px -10px;
}

.faded.faded-narrow.faded-top.faded-bottom:after {
    box-shadow: inset 0 25px 25px -10px, inset 0 -25px 25px -10px;
}

.faded.faded-narrow.faded-left.faded-bottom:after {
    box-shadow: inset 25px -25px 25px -10px;
}

.faded.faded-narrow.faded-top.faded-right.faded-bottom:after {
    box-shadow: inset -10px 0 25px 10px;
}

.faded.faded-narrow.faded-left.faded-right.faded-bottom:after {
    box-shadow: inset 0 -10px 25px 10px;
}

.faded.faded-narrow.faded-left.faded-top.faded-bottom:after {
    box-shadow: inset 10px 0 25px 10px;
}

.faded.faded-narrow.faded-left.faded-top.faded-right:after {
    box-shadow: inset 0 10px 25px 10px;
}

.faded.faded-narrow.faded-all:after, .faded.faded-narrow.faded-left.faded-top.faded-right.faded-bottom:after {
    box-shadow: inset 0 0 25px 10px;
}

.faded.faded-wide.faded-left:after {
    box-shadow: inset 80px 0 80px -28px;
}

.faded.faded-wide.faded-right:after {
    box-shadow: inset -80px 0 80px -28px;
}

.faded.faded-wide.faded-top:after {
    box-shadow: inset 0 80px 80px -28px;
}

.faded.faded-wide.faded-bottom:after {
    box-shadow: inset 0 -80px 80px -28px;
}

.faded.faded-wide.faded-left.faded-right:after {
    box-shadow: inset 80px 0 80px -28px, inset -80px 0 80px -28px;
}

.faded.faded-wide.faded-left.faded-top:after {
    box-shadow: inset 80px 80px 80px -28px;
}

.faded.faded-wide.faded-right.faded-bottom:after {
    box-shadow: inset -80px -80px 80px -28px;
}

.faded.faded-wide.faded-top.faded-right:after {
    box-shadow: inset -80px 80px 80px -28px;
}

.faded.faded-wide.faded-top.faded-bottom:after {
    box-shadow: inset 0 80px 80px -28px, inset 0 -80px 80px -28px;
}

.faded.faded-wide.faded-left.faded-bottom:after {
    box-shadow: inset 80px -80px 80px -28px;
}

.faded.faded-wide.faded-top.faded-right.faded-bottom:after {
    box-shadow: inset -25px 0 80px 28px;
}

.faded.faded-wide.faded-left.faded-right.faded-bottom:after {
    box-shadow: inset 0 -25px 80px 28px;
}

.faded.faded-wide.faded-left.faded-top.faded-bottom:after {
    box-shadow: inset 25px 0 80px 28px;
}

.faded.faded-wide.faded-left.faded-top.faded-right:after {
    box-shadow: inset 0 25px 80px 28px;
}

.faded.faded-wide.faded-all:after, .faded.faded-wide.faded-left.faded-top.faded-right.faded-bottom:after {
    box-shadow: inset 0 0 80px 28px;
}

.panel {
    background-color: blue;
    padding: 1em;
}

    .panel .faded {
        color: blue;
    }

img {
    max-width: 100%;
}