.sert-popup {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 999999999999;
    padding: 20px;
    background: #e7e7e7;
    border-radius: 10px;
    box-shadow: 0 0 10px #848484;
    width: 400px;
    max-width: calc(100% - 40px);
}
.sert-popup__title {
    font-size: 26px;
    font-size: 1.625rem;
    font-weight: 500;
    color: #000;
    text-decoration: none;
    transition: all .2s;   
    margin-bottom: 1rem;
}
.sert-popup__text {
    font-size: 14px;
}
.sert-popup__close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 20px;
    height: 20px;   
    cursor: pointer;         
}
.sert-popup__close::before,
.sert-popup__close::after {
    content: '';
    display: block;
    width: 24px;
    height: 2px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    background: #000;
    transition: .4s;
}
.sert-popup__close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}
.sert-popup__close:hover::before,
.sert-popup__close:hover::after {
    background: #005b9c;
}

.popup-error {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 999999999999;
    padding: 20px;
    background: #e7e7e7;
    border-radius: 10px;
    box-shadow: 0 0 10px #848484;
    width: 400px;
    max-width: calc(100% - 40px);
}
.popup-error__title {
    font-size: 26px;
    font-size: 1.625rem;
    font-weight: 500;
    color: #000;
    text-decoration: none;
    transition: all .2s;   
    margin-bottom: 1rem;
}
.popup-error__text {
    font-size: 14px;
}
.popup-error__close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 20px;
    height: 20px;   
    cursor: pointer;         
}
.popup-error__close::before,
.popup-error__close::after {
    content: '';
    display: block;
    width: 24px;
    height: 2px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    background: #000;
    transition: .4s;
}
.popup-error__close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}
.popup-error__close:hover::before,
.popup-error__close:hover::after {
    background: #005b9c;
}
.sert-popup ~ .popup-error {
    bottom: 250px;
}