.left_box {  position: absolute; visibility: visible; z-index: auto; left: 200px; top: 200px; clip:  rect(   )}
.left_second_box {  position: absolute; visibility: visible; z-index: auto; left: 200px; top: 40px; clip:  rect(   )}
.nav_bar {  position: absolute; visibility: visible; z-index: auto; left: 700px; top: 500px; clip:  rect(   )}