body{
    background-image: url(img/lake_green1920x1080.jpg);
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
}
p{
    text-align: center;
}
h2{
    direction: rtl;
    text-align: center;

}
html{
    direction: ltr;
    color: aliceblue;

}
#a{
    width: 1400px;
    height: 200px;
    padding: 5px;
    box-sizing: border-box;
    margin: 15px auto;
    background-color: rgba(64, 68, 52, 0.534);
    border-radius: 5px;
}
#a>div{
    /* padding: 5px; */
    /* box-sizing: border-box; */
    width: 227.5px;
    height: 190px;
    line-height: 190px;
    background-color: rgba(42, 165, 93, 0.301);
    float: left;
    margin-left: 5px;
    text-align: center;
    border-radius: 5px;
}
/* #a>#m1{ */
    #a>div:first-child{
        margin-left: 0;
}