main.less

// out: main.css
.color-plus-plus {
    background-color: #e6e9e9;
    border-top: 2px solid #dddddd;
    border-bottom: 2px solid #dddddd;
    padding: 2px 2px 2px 2px;
    width: 100%;
    display: block;
    box-sizing: border-box;
    cursor: default;
    font-family: "Calibri";
    font-size: 13px;
    overflow: auto;

    ul {
        margin: 0;
    }

    h1 {
        font-size: 15px;
        font-weight: bold;
        border-bottom: 1px solid black;
    }

    > div {
        width: 25%;
        box-sizing: border-box;
        padding: 0 10px;
        display: block;
        float: left;
        height: 300px;
        min-width: 300px;
    }

    > div:not(:last-child) {
        border-right: 1px solid white;
    }

    .close-color-picker {
        position: absolute;
        left: 5px;
        top: 5px;
        width: 20px;
        height: 30px;
        padding: 0;
        margin: 0;
        display: inline-flex;
        float: left;
        border: 0px solid transparent !important;
        cursor: pointer;
        font-size: 17px;
        text-align: center;
        font-family: inherit;
        transition: all 0.3s;
        opacity: 0.8;
    }

    .close-color-picker:hover {
        opacity: 1;
    }

    .select-color {
        margin: 0;
        border-radius: 5px;
        background-color: gray;
        padding: 10px;
        color: white;
        font-weight: bold;
        text-transform: uppercase;
        letter-spacing: 2px;
        transition: all 0.4s;
        cursor: pointer;
    }

    .select-color:hover {
        background-color: #b7b7b7;
    }

    .shadow.top {
        top: 0;
        background: linear-gradient(rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0))
    }

    .shadow.bottom {
        bottom: 0;
        background: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.1))
    }

    .shadow {
        display: block;
        height: 4px;
        width: 100%;
        position: absolute;
        content: " ";
        left: 0;
        z-index: 16;
    }

    .color-picker-section .color-string {
        padding: 3px;
        border-radius: 4px;
        border: 1px solid gray;
        width: 90%;
    }

    .color-picker-container {
        width: 70%;
        padding: 0px;
        box-sizing: border-box;
        display: inline-block;
        float: left;
    }

    .colors-types-container {
        width: 30%;
        padding: 0px;
        box-sizing: border-box;
        text-align: center;
        display: inline-block;
    }

    .colors-copmare {
        border-radius: 3px;
        overflow: hidden;
        margin: 0;
        background-color: #A5A5A5;
        background-image: linear-gradient(45deg, #dedede 24.5%, transparent 25%, transparent 75%, #dedede 75%, #dedede 100%), linear-gradient(45deg, #dedede 24.50%, transparent 25%, transparent 75%, #dedede 75%, #dedede 100%);
        background-position: 0 0, 5px 5px;
        background-size: 10px 10px;

        > span {
            width: 50%;
            height: 40px;
            display: inline-block;
            box-sizing: border-box;
            float: left;
        }
    }

    .colors-types {
        width: 100%;
        display: inline-block;
        border-radius: 5px;
        overflow: hidden;
        margin: 20px 0;


        &[data-type='hex'] > span[data-type='hex'],
        &[data-type='hsv'] > span[data-type='hsv'],
        &[data-type='rgb'] > span[data-type='rgb'],
        &[data-type='hsl'] > span[data-type='hsl'] {
            background-color: #737373;
        }

        > span {
            display: inline-block;
            text-align: center;
            padding: 7px 0;
            background-color: #B5B5B5;
            color: white;
            border-bottom: 1px solid white;
            transition: all 0.4s;
            cursor: pointer;
            font-size: 14px;
            width: 50%;
            float: left;
            box-sizing: border-box;

            &:hover {
                background-color: #949494;
            }

            &:nth-child(n+3) {
                border-bottom: 0px solid transparent;
            }
            &:nth-child(odd) {
                border-right: 1px solid white;
            }
        }
    }


    .document-colors-section,
    .document-variables-section {
        display: flex;
        flex-direction: column;
    }

    .document-colors-list,
    .document-variables-list {
        overflow-y: auto;
        flex-grow: 1;
    }

    .document-colors-section li,
    .document-variables-section li {
        list-style-type: none;
        padding: 0;
        width: 25px;
        float: left;
        height: 25px;
        margin-right: 1px;
        margin-bottom: 1px;
        position: relative;
        cursor: pointer;
        z-index: 0;
        transition: z-index 0.4s;

        &:hover {
            z-index: 1;
            transition: z-index 0s;
        }

        &:before {
            /*content: 'COLOR: ' attr(data-color) '\a LINE: ' attr(data-line);*/
            position: absolute;
            transition: all 0.4s;
            padding: 5px 10px;
            background-color: #919191;
            color: white;
            border-radius: 5px;
            top: calc(100% - 10px);
            transform: translateX(-50%);
            opacity: 0;
            left: 50%;
            pointer-events: none;
            white-space: pre;
        }
    }

    .color-meta {
        display: flex;
        margin-bottom: 10px;

        div:first-child {
            width: 70%;
        }

        div:last-child {
            width: 25%;
        }

        > div {
            > span:first-child {
                text-transform: uppercase;

                > span:last-child {
                    font-weight: bold;
                }
            }
        }
    }

    .color-combinations-section {
        > div {
            float: left;
            margin-bottom: 20px;

            &:nth-child(-n+3) {
                width: calc(100% / 3);
            }

            &:nth-child(6),
            &:nth-child(5) {
                width: 50%;
            }

            &:nth-child(7) {
                width: 100%;
            }
        }
    }


    .color-combinations-section {
        ul {
            float: left;
            width: 100%;
            margin: 0;
        }

        h2 {
            font-size: 13px;
            margin: 0;
            padding: 5px 0;
            line-height: 1;
        }

        li {
            float: left;
            display: inline-block;
            width: 20px;
            height: 20px;
            margin-right: 5px;
            list-style-type: none;
            cursor: pointer;
        }
    }

    /* Color picker Spectrum*/
    .color-picker-section {
        .sp-container {
            border-radius: 0;
            background-color: initial;
            border: initial;
            padding: 0;
            width: 100%;
        }

        .sp-picker-container {
            width: 90%;
            border: 0px solid transparent;
            padding: initial;
            margin: 0px;
            left: 0;
        }

        .sp-hue {
            left: initial;
            width: 20px;
            border-radius: 3px;
        }

        .sp-color {
            right: 30px;
            border-radius: 3px;
            overflow: hidden;
            border: 1px solid black;
        }

        .sp-slider {
            position: absolute;
            top: 0;
            cursor: pointer;
            height: 8px;
            left: -5px;
            right: -5px;
            border: 1px solid #ADADAD;
            background: white;
            opacity: 0.8;
            border-radius: 2px;
        }

        .sp-dragger {
            border-radius: 50%;
            height: 10px;
            width: 10px;
            border: 1px solid #fff;
            background: rgba(150, 150, 150, 0.88);
            transform: translate(40%, 45%);
        }

        .sp-alpha-inner {
            border: solid 1px #333;
            border-radius: 2px;
        }

        .sp-alpha-handle {
            width: 8px;
            border-radius: 3px;
        }
    }

    .function-variants-section li {
        list-style: none;
        float: left;
        width: 40px;
        height: 40px;
        margin-right: 1px;
        margin-bottom: 1px;
        display: flex;
        flex-direction: column;
        text-align: center;
        justify-content: center;
        cursor: pointer;
    }
    
    .section-level
    {
        display: none;
    }
}


.highlight-circle:last-child {
    padding-right: 15px;
    position: relative;
    border-style: solid;
    border-width: 0;

    &::after {
        content: "";
        border-color: inherit;
        border-width: 4px;
        width: 0px;
        height: 0px;
        border-radius: 50%;
        position: absolute;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        border-style: solid;
    }
}

.highlight-square:last-child {
    padding-right: 15px;
    position: relative;
    border-style: solid;
    border-width: 0;

    &::after {
        content: "";
        border-color: inherit;
        border-width: 4px;
        width: 0px;
        height: 0px;
        position: absolute;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        border-style: solid;
    }
}

.colors-plus-plus-gutter
{
    width: 20px;
}
.highlight-gutter {
    height: 10px;
    width: 10px;
    margin: 1px 1px 1px 5px;
    display: block;
    display: flex;
    align-self: center;
    position: relative
}