ul
{
    list-style-type: disc;  
    padding:0px 0px 0px 0px; 
    margin:5px 0px 20px 40px;
}

ul.ul_clear
{
    list-style-type: none;
}

ol
{
    list-style-type: decimal;  
    padding:0px 0px 0px 0px; 
    margin:15px 0px 20px 40px;
}

li
{
    padding:0px 0px 5px 0px; 
    line-height: 1.5em;
}

.problem
{
    list-style-type: disc;  
    padding:0px 0px 0px 0px; 
    margin:0px 0px 10px 40px;
}

.problem li
{
    padding:0px 0px 5px 0px; 
}