.nav {
    width: 100%;
    height: 15%;
    position: absolute;
    top: 90%;
    background-color: white;
    display: flex;
    border-bottom: 1px solid gray;
    z-index: 3;
}

body {
    margin: 0;
    padding: 0;
    background-image: url("../images/004.jpeg")
}

.home {
    position: fixed;
}
.left,.right {
    width: 10%;
    height: 100%;
    text-align: center;
}

.end {
    width: 16%;
    height: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: auto;
}

.menu {
    width: 16%;
    height: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: auto;
    border-right: 1px solid gray;
}

a {
    color: gray;
    font-size: 18px;
    text-decoration: none;
}

.nav a:hover {
    height: 100%;
    width: 80%;
    text-align: center;
    line-height: 47px;
    background-color: cornflowerblue;
    color: white;
    border-radius: 7px;
    transition: 1s; /**/
}

.whole{
    margin: 60px;
    display: grid;
    grid-row-gap: 60px;
    grid-column-gap: 60px;
    grid-template-columns:850px 850px;
    grid-template-rows: 350px 350px;


}
.content001 {
    background: #19CAAD;
    text-align: center;
    padding: 30px;
}
.content002 {
    background: #8CC7B5;
    text-align: center;
    padding: 30px;
}
.content003 {
    background: #D1BA74;
    text-align: center;
    padding: 30px;
}
.content004 {
    background: #BEE7E9;
    text-align: center;
    padding: 30px;
}
#right{
    text-align: left;
    padding: 30px;
}