Giving the
<ul>
a width
Top Level 1
Sub Level 1.1
Echeneis
Sharksucker
Whitefin Sharksucker
Phtheirichthys
Slender Suckerfish
Remora
Whalesucker
Spearfish remora
Marlinsucker
Remora
Ceylonese remora
Remorina
White suckerfish
Rhombochirus
R. osteochir
Sub Level 1.2
Sub Level 1.3
Sub Level 1.4
Top Level 2
Sub Level 2.1
Sub Level 2.2
Sub Level 2.3
Sub Level 2.4
Sub Level 2.5
Top Level 3
Sub Level 3.1
Sub Level 3.2
Sub Level 3.3
Sub Level 3.4
Top Level 4
Sub Level 4.1
Sub Level 4.2
Sub Level 4.3
Sub Level 4.4
Sub Level 4.5