body{
    line-height: 1.2rem;
}
h3{
    text-align: center;
    font-size: 1rem;
}
.about_box{
    padding:0 .5rem;
    color : #484848;
}
.about_box p{
    text-indent: 25px;
    margin: 5px 0;
    font-size: 14px;
}
.btn_help{
    border: 1px solid #cacaca;
    background: #e0e0e0;
    background: -webkit-gradient(linear,0% 0,0% 100%,from(#fefefe),to(#e0e0e0));
    font-size: 18px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    display: block;
    width: 100%;
    cursor: pointer;
}
.ps{
    color: #8C8C8C;
    font-size: .7rem;
}
footer{
    font-size: .6rem;
    margin: 5px 0;
}
footer p{
    margin: 0;
}