.modal-inicial{
    width: 80%;
}

.modalInicial {
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.8);
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    animation: modal 2s 3s forwards;
    visibility: hidden;
    opacity: 0;
    z-index: 1000;
}

.contenido {
    margin: auto;
    text-align: center;
    padding: 1%;
    width: 80%;
    height: 80%;
    background: white;
    border-radius: 10px;
    position: relative;
}

.contenido > img{
    width: 80%;
    height: 95%;
}

#cerrar {
    display: none;
}

#btn-cerrar {
    transform: translate(20px, -20px);
    position: absolute;
    color: #fff;
    font-size: 9px;
    background: #0D47A1;
    height: 40px;
    width: 40px;
    line-height: 40px;
    border-radius: 50%;
    right: 0;
    top: 0;
    cursor: pointer;
    animation: modal 2s 3s forwards;
    visibility: hidden;
    opacity: 0;
}

#cerrar:checked + label, #cerrar:checked ~ .modal {
    display: none;
}

@keyframes modal {
    100% {
        visibility: visible;
        opacity: 1;
    }
}