html, body {
    margin: 0;
}
body{
    background-color:#f1f1f1;
    display:flex;
    justify-content: center;
}
a {
    text-decoration:none;
    background-color: aquamarine;
    margin:10px;
    float:right;
    box-shadow: 5px 5px 5px;
    color: black;
    font-weight: bold;
}
a:hover{
    background-color: black;
    color:aquamarine;
}

.wrapper {
    width:1200px;
    display:flex;
    margin: 0 auto;
    background-color: aquamarine;
}

.main {
    display:flex;
    flex-flow:column;
    width:85%;
}
.menu {
    width:15%;
    background-color: aqua;
    padding: 10px 20px 0px;
}
.header {
    background-color:rgb(5, 108, 108);
    min-height: 150px;
}
.content{
    background-color: white;
    min-height: 300px;
    padding:15px;
}
footer{
    background-color:rgb(99, 56,240);
    min-height: 150px;
}