.blank{
    font-weight: bolder;
    font-size: larger;
    box-sizing: border-box;
    padding: 10px;
    background-color: aquamarine;
    display: inline-block;
    position: absolute;
    top: 40%;
    left: 45%;
}
.header{
    background-color: #B0E0E6;
    color:black;
    font-size: larger;
    display: flex;
    padding: 10px;
}
.nav{
    margin-left: auto;
    width: max-content;
    background-color: #AFEEEE;
    display: flex;
    padding: 15px;
    text-align: center;
    font-weight:900;
    align-items: center;
    height: fit-content;
}
.nav a {
    position: relative;
    color: black;
    padding-left: 20px;
    padding-right: 20px;
    margin-left: 20px;
    margin-right: 20px;
}
.article{
    float: left;
    box-sizing: border-box;
    background-color: #F0FFFF;
    width: 50%;
    margin: 0;
    padding: 5px;
}
aside{
    float: left;
    box-sizing: border-box;
    background-color: #A7C7E7 ;
    width: 50%;
    margin: 0;
    padding: 5px;
}
img{
    border-style:double;
    border-width: thick;
    border-color:black ;
    border-radius: 5px;
}
footer{
    background-color: #C6E2FF;
    padding: 5px;
    text-align: center;
    clear: both;
}