// Default variables
$size: .5rem;
$background: #e5e5e5;
$background--active: #fefefe;
$color: #4e4e4e;
$color--disabled: #8e8e8e;
$breakpoint: 600px;

// include tabs styling
@import './path-to-bower-folder/csstabs/tabs.scss';

// add custom styling
.tabs__label {
    text-shadow: 0 1px 0 #444;
}

.tabs__content {
    border-bottom: #444;
}

<div class="tabs">
    <input type="radio" id="tab1" class="tabs__radio" name="tabs" value="1" checked>
    <input type="radio" id="tab2" class="tabs__radio" name="tabs" value="2">
    <input type="radio" id="tab3" class="tabs__radio" name="tabs" value="3">
    <input type="radio" id="tab4" class="tabs__radio" name="tabs" value="4">
    <input type="radio" id="tab5" class="tabs__radio" name="tabs" value="5">
    <input type="radio" id="tab6" class="tabs__radio" name="tabs" value="6" disabled>
    <input type="radio" id="tab7" class="tabs__radio" name="tabs" value="7">
    <input type="radio" id="tab8" class="tabs__radio" name="tabs" value="8">
    <input type="radio" id="tab9" class="tabs__radio" name="tabs" value="9">
    <input type="radio" id="tab10" class="tabs__radio" name="tabs" value="10">
    <label for="tab1" class="tabs__label">Tab 1</label>
    <label for="tab2" class="tabs__label">Tab 2</label>
    <label for="tab3" class="tabs__label">Tab 3</label>
    <label for="tab4" class="tabs__label">Tab 4</label>
    <label for="tab5" class="tabs__label">Tab 5</label>
    <label for="tab6" class="tabs__label">Tab 6</label>
    <label for="tab7" class="tabs__label">Tab 7</label>
    <label for="tab8" class="tabs__label">Tab 8</label>
    <label for="tab9" class="tabs__label">Tab 9</label>
    <label for="tab10" class="tabs__label">Tab 10</label>
    <div class="tabs__content">
        <p>Tab content 1</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 2</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 3</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 4</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 5</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 6</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 7</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 8</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 9</p>
    </div>
    <div class="tabs__content">
        <p>Tab content 10</p>
    </div>
</div>