Widget Tricks - Age Pyramid with custom HTML/CSS

<ods-dataset-context
        context="ctx"
        ctx-dataset="north-carolina-population-overview-2010"
        ctx-domain="userclub">
    <div ng-init="variables = {'index' : {}, 'max' : {}, 'displayvalues' : false};
              agefield = 'age';
              genderfield = 'sex';
              valuefield = 'value'">
        <div class="row">
            <h3>Age pyramid for the state of North Carolina, USA</h3>
            <div ods-adv-analysis="analysis"
                 ods-adv-analysis-context="ctx"
                 ods-adv-analysis-select="sum({{valuefield}}) as pyramidnumber"
                 ods-adv-analysis-group-by="{{genderfield}}, {{agefield}}"
                 ods-adv-analysis-order-by="{{agefield}}">
                <div ods-adv-analysis="totalbygender"
                     ods-adv-analysis-context="ctx"
                     ods-adv-analysis-group-by="{{genderfield}}"
                     ods-adv-analysis-select="SUM({{valuefield}}) as totalgender"
                     ods-adv-analysis-order-by="{{genderfield}}">
                    <div ods-subaggregation="analysis"
                         ods-subaggregation-serie-maxcount="MAX(pyramidnumber)">
                        {{ variables.max['pyramidnumber'] = results[0].maxcount ; "" }}
                        <div ng-repeat="result in analysis">
                            <div
                                    ng-init="variables.index[result[agefield]] = variables.index[result[agefield]] || {};
                                              variables.index[result[agefield]][result[genderfield]] = result.pyramidnumber">
                            </div>
                        </div>
                    </div>
                    <!--- the pyramid --->
                    <div class="pyramid-line">
                        <!--- left side : title and total --->
                        <div class="pyramid-side pyramid-side-left">
                            {{totalbygender[0][genderfield]}} (total : {{ totalbygender[0].totalgender | number }})
                        </div>
                        <!-- middle : title --->
                        <div class="pyramid-middle">Age</div>
                        <!--- right side : title and total --->
                        <div class="pyramid-side pyramid-side-right">
                            {{totalbygender[1][genderfield]}} (total : {{ totalbygender[1].totalgender | number }})
                        </div>
                    </div>
                    <div class="pyramid-line" ng-repeat="i in variables.index|keys">
                        <!--- left side : bars --->
                        <div class="pyramid-side pyramid-side-left">
                            <div class="fond_bar" style="width: 100%">
                                <div
                                        class="bar"
                                        style="width : {{ variables.index[i][totalbygender[0][genderfield]]*100/variables.max['pyramidnumber'] || 0 }}%"
                                ></div>
                            </div>
                            <!--- left values to be displayed when the switch button is on --->
                            <div class="pyramid-value left">
                                <span ng-if="variables.displayvalues == true">{{variables.index[i][totalbygender[0][genderfield]] | number}}</span>
                            </div>
                        </div>
                        <!--- middle : the different age classes titles --->
                        <div class="pyramid-middle">{{ i }}</div>
                        <!--- right side : bars --->
                        <div class="pyramid-side pyramid-side-right">
                            <div class="fond_bar" style="width: 100%">
                                <div
                                        class="bar"
                                        style="width : {{ variables.index[i][totalbygender[1][genderfield]]*100/variables.max['pyramidnumber'] || 0 }}%"
                                ></div>
                            </div>
                            <!--- right values to be displayed when the switch button is on --->
                            <div class="pyramid-value right">
                    <span ng-if="variables.displayvalues == true">
                      {{variables.index[i][totalbygender[1][genderfield]] | number}}</span>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <!--- switch button to display values --->
        <div class="row">
            <div class="col-sm-6">
                <div class="pyramid-switch">
                    <p>Display values:</p>
                    <label class="switch">
                        <input
                                class="switch-input"
                                type="checkbox"
                                ng-model="variables.displayvalues"
                                ng-true-value="true"
                                ng-false-value="false"
                                ng-checked="variables.view == true"/>
                        <div class="switch-button">
                            <span class="switch-button-left">OFF</span>
                            <span class="switch-button-right">ON</span>
                        </div>
                    </label>
                </div>
            </div>
            <div class="col-sm-6"></div>
        </div>
    </div>
</ods-dataset-context>

:root {
    --left-color: #142E7B;
    --right-color: #ffcc00;
}
/***************/
/* Age pyramid */
/***************/
.pyramid-line {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin: auto;
}

.pyramid-middle {
    font-weight: 500;
    flex: 1;
    min-width: 70px;
    text-align: center;
    white-space: nowrap;
}

.pyramid-side {
    flex: 3;
    margin: 0px 10px;
    text-align: center;
    display: flex;
    align-items: center;
} 

.pyramid-side-left {
    color: var(--left-color);
    flex-direction: row-reverse;
}

.pyramid-side-right {
    color: var(--right-color);
    flex-direction: row;
}

.pyramid-side-value {
    width: 60px;
}

div.fond_bar{
    background-color: #f3f3f382;
    height: 15px;
    border-radius: 1000px;
}

div.bar{
    border-radius: 1000px;
    height: 15px;
}

.pyramid-side-left div.bar { 
    background-color : var(--left-color);
    float: right;
}

.pyramid-side-right div.bar { 
    background-color : var(--right-color);
}

.pyramid-value {
    font-size: 12px;
    padding: 0px 5px;
    flex: 1;
}

.left {
    text-align: start;
}

.right {
    text-align: end;
}






/* Optional : SWITCH BUTTON */
.pyramid-switch {
    display: flex;
    align-items: baseline;
    margin-top: 13px;
}
.pyramid-switch .switch {
    margin-left: 6px;
}

/* Button Group Switch
   ========================================================================== */

.switch {
    display: inline-block;
    margin-bottom: 0.5rem;
}

.switch-button {
    /* background and border when in "off" state */
    background: var(--highlight);
    border: 2px solid var(--highlight);
    display: grid; 
    grid-template-columns: 1fr 1fr;
    border-radius: 6px;
    color: #FFFFFF;
    position: relative;
    cursor: pointer;
    outline: 0;
    user-select: none;
}

.switch-input:not(:checked) + .switch-button .switch-button-left {
    /* text color when in "off" state */
    color: var(--highlight);
}

.switch-input {
    display: none;
}

.switch-button span {
    font-size: 1rem;
    padding: 0.2rem .7rem;
    text-align: center;
    z-index: 2;
    color: #FFFFFF;
    transition: color .2s;
}

.switch-button::before {
    content: '';
    position: absolute;
    background-color: #FFFFFF;
    box-shadow: 0 1px 3px rgba(0,0,0,.4);
    border-radius: 4px;
    top: 0;
    left: 0;
    height: 100%;
    width: 50%;
    z-index: 1;
    transition: left .3s cubic-bezier(0.175, 0.885, 0.320, 1), 
                padding .2s ease, margin .2s ease;
}

.switch-button:hover::before {
    will-change: padding;
}

.switch-button:active::before {
    padding-right: .4rem;
}

/* "On" state
   ========================== */
.switch-input:checked + .switch-button {
    /* background and border when in "on" state */
    background-color: var(--links);
    border-color: var(--links);
}

.switch-input:checked + .switch-button .switch-button-right {
    /* text color when in "on" state */
    color: var(--links);
}

.switch-input:checked + .switch-button::before {
    left: 50%;
}

.switch-input:checked + .switch-button:active::before {
    margin-left: -.4rem;
}

/* Checkbox in disabled state
   ========================== */
.switch-input[type="checkbox"]:disabled + .switch-button {
    opacity: 0.6;
    cursor: not-allowed;
}