contact.css

* {
    /* מרחיב את הבורדר והפדינג כלפי פנים ולא כלפי חוץ כברירת מחדל */
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Open Sans', sans-serif;
    direction: rtl;
}
.container-fluid {
    width: 100%;
    padding: 0px 16px;
}
.container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 900px;
    margin: 0 auto;
}
header{
    background: rgb(88, 16, 16);
    min-height: 80px;
}
header nav a {
    color: white;
    text-decoration: none;
    padding: 0 12px;
}
header nav a:hover {
    color: gold;
    text-decoration: underline;
}
header .icon{
    border: none;
    border-radius: 30px;
}
header nav a[href="contact.html"]{
    color: gold;
}
.strip {
    min-height: 300px;
    background-image: url(images/בית\ כנסת.png);
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    height: 400px;
    padding: 8px;
}

.strip .container {
    max-width: 400px;
    /* יורש מאבא */
    min-height: inherit;
    padding: 8px;
    color: white;
    display: flex;
    text-align: center;
    align-items: center;
}

main {
    min-height: 200px;
    background: #eee;
    position: relative;
}

main .half_gray {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background-image: url(images/בית\ כנסת.png);
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    padding: 8px;
}

main .container {
    padding: 32px;
    display: flex;
    /* אם הילדים גדולים מ100%, יהיו אחד אחרי השני */
    flex-wrap: wrap;
    justify-content: space-between;
}

main .Box {
    background: white;
    width: 30%;
    text-align: center;
    padding: 16px;
    box-shadow: 0px 10px 13px -7px #000000, 5px 5px 15px 5px rgba(0, 0, 0, 0);
    z-index: 99;
}


/* responsivi */
@media (max-width:500px) {
    header .logo{
        width: 100%;
    }
    header nav {
        display: none;
    }
    header .menu {
        display: block;
    }
    main .Box{
        width: 100%;
        margin-bottom: 24px;
    }
}