.sibcont{
background:
#f1f1f1;
border:1px solid
#bababa;
margin:20px;
padding:20px;
}
.sibcont ul{
margin:0;
padding:0;
list-style:none;
}
.sibcont ul li{
color:
#C91010;
font-size:13px;
line-height:26px;
}
//not选择器
.sibcont ul li:not(:first-child){
color:
#0C58A7;
}
<div class=
"sibcont"
>
<ul>
<li>妹子前端</li>
<li>妹纸前端</li>
<li>mooshine前端</li>
<li>not()选择器</li>
</ul>
</div>