.apk {
    width: 100%;
    height: 650px;
    margin-top: 80px;
    background: #fff;
    text-align: center;
}

.apk li {
    float: left;
    width: 20%;
    /* height: 455px; */
    margin: 50px 0 0 0;
}

.apk li img {
    width: 100px;
    height: 100px;
    margin: 10px auto;
    display: block;
}

.apk li h2 {
    text-align: center;
    font-size: 20px;
}

.apk span {
    display: inline-block;
    color: blue;
    width: 400px;
    margin-top: 20px;
}

.apk li p {
    width: 90%;
    font-size: 14px;
    height: 100px;
    /* background: red; */
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

#output,
#outpu_a,
#outpu_b {
  
    margin: 0 auto;
}

.button {
    -webkit-border-radius: 28;
    -moz-border-radius: 28;
    border-radius: 28px;
    text-shadow: 0px 1px 0px #2f6627;
    font-family: Arial;
    color: #ffffff;
    font-size: 14px;
    background: #44c767;
    border: solid #18ab29 1px;
    text-decoration: none;
    margin: 5px auto;
    padding: 0px 10px;
    display: inline-block;
}

.button:hover {
    color: #ffffff;
    background: #5cbf2a;
    text-decoration: none;
}