@charset "utf-8";

header {
    box-sizing: border-box;
    background-color: black;
    padding: 1px 9px;
    text-align-last: center;
    color: white;
}

nav{
    box-sizing: border-box;
    width:auto;
    height: 40px;
    background-color: #678989;
    margin-top: 5px;

}
nav ul {
    position: absolute;
    padding-left: 40%;
}
nav ul li{
    display: inline;
    list-style-type: none;
    margin-right: 10px;
}
main{
    display: flex;
    box-sizing: border-box;
    background-color: #907777;
    padding: 5px;
    margin-top: 5px;
}
.a1 {
    padding: 5px;
    border: 2px dotted black;
    margin-top: 5px;
    padding-bottom: 25%;
    clear:right;
}
.a2 {
    padding: 5px;
    border: 2px dotted black;
    margin-top: 5px;
    padding-bottom: 25%;
}
aside{
    padding: 5px;
    border: 2px dotted black;
    margin-top: 5px;
    margin-left: 5px;
}
footer {
    background-color: #678989;
    margin-top: 5px;
    padding-top: 10px;
    padding-bottom: 10px;
    text-align: center;
}
.floatRight {
    float: right;
    padding-right: 15px;    
}
.clearRight{
    clear: right;
}