#list li.pg-1 .art-content {
    margin: 3% auto 0 auto;
    max-width:  70%;
}

#list li.pg-1 .art-content #s2, #list li.pg-2 .art-content #s1, #list li.pg-3 .art-content #s1, #list li.pg-3 .art-content #s15 {
    margin-left: 20px;
    padding-left:  50px !important;
}

#list li.pg-1 .art-content #s2:before, #list li.pg-2 .art-content #s1:before, #list li.pg-3 .art-content #s1:before, #list li.pg-3 .art-content #s15:before {
    content:  "";
    display: block;
    position:  absolute;
    width: 18px;
    height: 17px;
    border-radius:  25px;
    background-color:  #000;
    left: 25px;
    top: 1px;
}

#list li.pg-2 .art-content {
    margin: 5% auto 0 auto;
    max-width: 50%;
}

#list li.pg-3 .art-content {
    max-width: 56%;
}
#list li.pg-4 .art-content {
    margin: 65% auto 0 auto;
}