style.css

    .qui-window-popup-buttons.box button {
        display: block !important;
        margin: 10px 20px;
        width: calc(100% - 40px);
    }
}

/** Login / logout popup
 ===================================== */
/* login */
.cologne-login-dialog {
    outline: none;
}

.cologne-login-dialog .qui-window-popup-title {
    background: none;
    padding: 0;
}

.cologne-login-dialog .quiqqer-frontendUsers-loginWindow-close {
    border-radius: 0;
    height: 40px;
    line-height: 40px;
    width: 40px;
}

.cologne-login-dialog .quiqqer-frontendUsers-loginWindow-logo {
    margin: 2rem auto;
    max-height: 100px;
    max-width: calc(100% - 100px);
}

.cologne-login-dialog .qui-window-popup-content {
    height: auto !important;
    padding: 20px 40px;
}

.quiqqer-fu-login-container h2:first-child,
.quiqqer-fu-registrationSignUp-registration-content h2:first-child {
    text-align: center;
    position: relative;
}

.quiqqer-fu-login-container h2:first-child:after,
.quiqqer-fu-registrationSignUp-registration-content h2:first-child:after {
    bottom: -10px;
    content: '';
    height: 2px;
    left: calc(50% - 40px);
    position: absolute;
    width: 80px;
}

/* disable ugly autofill background */
.quiqqer-auth-login-container input,
.quiqqer-fu-login-email input {
    box-shadow: 0 0 0 30px #fff inset;
}

/*
 because of disabling autofill background
 :focus is simulated by box.shadow
 */
.quiqqer-auth-login-container input[type="text"]:focus,
.quiqqer-auth-login-container input[type="password"]:focus,
.quiqqer-fu-login-email input[type="text"]:focus,
.quiqqer-fu-login-email input[type="password"]:focus {
    box-shadow: 0 0 0 30px #f5f5f5 inset;
}

/* logout */
/* show close button */
.cologne-logout-dialog .qui-window-popup-title {
    background: none !important;
    display: block !important;
    padding: 0 !important;
}

.cologne-logout-dialog .qui-window-popup-title-close {
    align-items: center;
    border-radius: 0;
    color: inherit;
    display: flex;
    font-size: 1.5em !important;
    justify-content: center;
    line-height: 0 !important;
    padding: 0 !important;
    position: relative !important;
}

.cologne-logout-dialog .qui-window-popup {
    display: flex;
    flex-direction: column;
}

.cologne-logout-dialog .qui-window-popup-content {
    padding-top: 0 !important;
}

.cologne-logout-dialog .submit-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.cologne-logout-dialog .submit-body .textbody {
    width: 100% !important;
}

.cologne-logout-dialog .qui-window-popup-content .texticon {
    float: none !important;
    margin: 0 auto 30px !important;
}

/** Product Children Slider (horizontal)
 ===================================== */
.quiqqer-bricks-children-slider-container-wrapper .quiqqer-bricks-children-slider-container,
.quiqqer-bricks-children-slider-container-inner {
    height: calc(100% + 22px);
}

ul.quiqqer-bricks-children-slider-container-slide {
    /*padding: 10px 0 !important;*/
}

.quiqqer-bricks-children-slider-container-slide .quiqqer-products-control-product-childrenslider-entry {
    border-color: #ddd;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0);
    transition: 0.2s all;
}

.quiqqer-bricks-children-slider-container-slide .quiqqer-products-control-product-childrenslider-entry:hover {
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.quiqqer-bricks-children-slider-container-slide .quiqqer-bricks-children-slider-child-display img:hover {
    -webkit-transform: none;
    transform: none;
}

.quiqqer-bricks-children-slider-child:last-child .quiqqer-products-control-product-childrenslider-entry {
    margin-right: 0;
}

/* nav arrows */
.quiqqer-bricks-children-slider-mobile .quiqqer-bricks-children-slider-container-wrapper .quiqqer-bricks-children-slider-prev,
.quiqqer-bricks-children-slider-mobile .quiqqer-bricks-children-slider-container-wrapper .quiqqer-bricks-children-slider-next {
    align-items: center;
    border-color: rgba(51, 51, 51, 0.2);
    border-radius: 0;
    color: #666;
    display: flex;
    height: calc(100% - 2px);
    justify-content: center;
}

.quiqqer-bricks-children-slider-mobile .quiqqer-bricks-children-slider-container-wrapper .quiqqer-bricks-children-slider-prev:hover,
.quiqqer-bricks-children-slider-mobile .quiqqer-bricks-children-slider-container-wrapper .quiqqer-bricks-children-slider-next:hover {
    background: rgba(188, 188, 188, 0.5);
}

.brick-full-width .quiqqer-bricks-children-slider-container-slide .quiqqer-products-control-product-childrenslider-entry:first-child {
    margin: 0 5px 0 5px;
}

.brick-full-width .quiqqer-bricks-children-slider-child:first-child .quiqqer-products-control-product-childrenslider-entry:first-child {
    margin-left: 20px;
}

.brick-full-width .quiqqer-bricks-children-slider-child:last-child .quiqqer-products-control-product-childrenslider-entry:first-child {
    margin-right: 20px;
}

/************************/
/* lang currency switch */
/************************/
.lcs-button-currency-sign {
    font-size: 1.2rem;
}

.lcs-button-currency-code {
    font-size: 0.9rem;
}

.lcs-menu .quiqqer-currency-switch {
    height: 40px;
    line-height: 40px;
}

.lcs-menu-list-entry-link.current-lang {
    opacity: 0.5;
    pointer-events: none;
}

/*************/
/* font icon */
/*************/
a.font-icon {
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2);
    color: inherit;
    display: inline-block;
    line-height: 2.5rem;
    margin-right: 10px;
    text-align: center;
    width: 2.5rem;
}

a.font-icon .fa {
    font-size: 0;
}

a.font-icon .fa:before {
    font-size: 1rem;
}