.header {
 width: 100%;
} 
#container img {float:left}

#container6 {
font-family:Arial,Helvetica,sans-serif;
font-size:14px;
color:#B0B0B0;
height: 8em;
display: flex;
align-items: center;
justify-content: center; 
}
 
.sidebar {
 display: inline;
 width: 25%;
 float: left;
}

.article {
 display: inline;
 width: 25%;
 float: left;
 padding-left: 5%;
 padding-right: 5%;
}


.sidebar2 {
 display: inline;
 width: 40%;
 float: right;
 
}