#block1 {
text-align: justify;
width: 100px;
height: 100px;
background: #ff0000;
} 
#block2 {
text-align: justify;
width: 235px;
height: 80px;
background: #ffffff;

} 
#block3 {
text-align: justify;
width: 100px;
height: 100px;
background: #00ff00;
} 
#block4 {
text-align: justify;
width: 100px;
height: 73px;
background: #0000ff;
} 
.pad10 {
padding: 3px;
} 
.overflow {
overflow: auto;
width: 235px;
height: 73px;
} 
.padside {
padding-right: 10px;
}