body{
    font-family: "Noto Sans", sans-serif;
    width: 70%;
    margin: 0 auto;
}
/* ======================header===================== */
header{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo{
    display: flex;
}
.logo img{
    width: 50px;
}
nav{
    width: 50%;
    display: flex;
    justify-content: space-around;
}
/* ===================banner======================= */
.banner{
    padding: 100px 0;
    background-image: url(../img/background.jpg);
    background-size: cover;
    background-position: center;
    margin-bottom: 20px;
}
.banner h1{
    color: white;
    text-align: center;
}
/* ====================pictures===================== */
.pictures{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.picture{
    width: 30%;
}
.picture img{
    width: 100%;
}
/* ==================footer======================== */
.fa-brands{
    font-size: 3rem;
    color: black;
}


/* ===================mediaquery================== */
@media only screen and (max-width: 768px){
    body {
        background-color: aqua;
        width: 95%;
    }
    .banner{
        padding: 50px 0;
    }
    
}
@media only screen and (max-width: 535px){
    header{
        flex-direction: column;
    }
    nav{
        width: 100%;
    }
}
@media only screen and (max-width: 426px){
    .picture{
        width: 45%;
    }
    body {
        background-color: red;
    }
    nav{
        flex-direction: column;
        text-align: center;
        margin-bottom: 2%;
    }
    .banner{
        display: none;
    }
}
@media only screen and (max-width: 356px){
    .picture{
        width: 100%;
    }
    body {
        background-color: yellow;
    }
}