#seana {
width:1200px;
position: relative;
margin-left: 60px;
box-sizing:border-box;
}
#sesol1 {
width:280px;
float:left;
text-align:left;
padding:10px;
box-sizing:border-box;
}
#sesol2 {
width:280px;
float:left;
text-align:left;
padding:10px;
box-sizing:border-box;
}
#sesag1 {
width:280px;
float:left;
text-align:left;
padding:10px;
box-sizing:border-box;
}
#sesag2 {
width:280px;
float:left;
text-align:left;
padding:10px;
box-sizing:border-box;
}

bu şekilde dene bakalım.