header {

    background-size: cover;

    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

header * {
    text-align: center;
    line-height: 1.6;
}

header p {
    font-size: 1rem;
    color: var(--gray) !important;
    font-weight: 300;
}

header blockquote {
    font-size: 1.2rem;
    color: var(--green) !important;
    font-weight: 500;
}

.about-us .feature-box {
    display: flex;
    flex-direction: column;
    text-align: left;
    border-radius: 45px !important;
    padding: 45px !important;
}

.about-us .feature-box p {
    width: 100%;
}

.about-us .border-teal p:last-child {
   color: var(--green);
}


.about-us .describe {
    line-height: 1.6;
 }


@media screen and (max-width: 991px)  {
    header {
        padding-top: 100px;
    }
    .about-us h2 {
        font-size: 2.2rem;
    }

    .about-us h3 {
        font-size: 2rem;
    }

    .about-us p {
        font-size: 1.2rem;
    }

    .about-us .feature-box p:first-child {
        font-size: 1.4rem;
        margin-bottom: 50px;
    }
}

@media screen and (min-width: 992px)  { 
    header {
        height: 100vh;
        background-attachment: fixed;
    }

    header img {
        height: calc(100vh - 70px) !important;
        object-fit: contain;
        margin-top: 70px  !important;
        border-radius: 0px !important;
    }
    
    .about-us h2 {
        font-size: 4.5rem;
    }

    .about-us h3 {
        font-size: 4rem;
    }  
    
    .about-us p {
        font-size: 1.2rem;
    }

    .about-us .feature-box p:first-child {
        height: 155px;
        font-size: 1.8rem;
    }

    .describe p {
        font-size: 1.2rem;
    }
}

@media screen and (min-width: 1200px)  { 
    .about-us .feature-box p:first-child {
        height: 170px;
        font-size: 2.2rem;
    }
}

.about-us strong {
    height: 200px;
}

.about-us .feature-box p:last-child {
    margin-bottom: 0;
}

.about-us h2 {
    color: #FFF;             
    text-shadow:
    1px  1px 0 #000,
   -1px  1px 0 #000,
    1px -1px 0 #000,
   -1px -1px 0 #000;
}

#what-is-it .feature-boxs>div .feature-box {
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

#what-is-it .feature-boxs >div:nth-child(1) .feature-box {
    background-image:  linear-gradient(rgba(0, 109, 117, 0.7), rgba(0, 109, 117, 0.7)), url(../images/stetoskop.jpeg);
}

#what-is-it .feature-boxs >div:nth-child(2) .feature-box {
    background-image:  linear-gradient(rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 1)), url(../images/salon.jpeg);
}

#what-is-it .feature-boxs >div:nth-child(3) .feature-box {
    background-image:  linear-gradient(rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 1)), url(../images/rehabilitacja.jpeg);
}

#what-is-it .feature-boxs >div:nth-child(4) .feature-box {
    background-image:  linear-gradient(rgba(0, 109, 117, 0.7), rgba(0, 109, 117, 0.7)), url(../images/placowka.jpeg);
}