* {
    -moz-box-sizing: boder-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}
#father_container {
    width: 720px;
    display: inline-block;
    float: right;
    background-image: url("design/telegram_background.png");
}
.sub_container {
    overflow: hidden;
    width: 720px;
    padding: 12px;
}
.img_left {
    width: 48px;
    height: 48px;
    display: inline-block;
    margin: 0px;
}
.content_container_left {
    width: 640px;
    display: inline-block;
}
.p_left {
    float: left;
    width: 500px;
    margin: 0;
    padding: 12px 10px 12px 10px;
    background: rgb(255, 255, 255);
    box-shadow: -2px -2px 1px rgb(206, 214, 221) inset;
}
.p_left::before {
    display: block;
    content: "Android";
    color: rgb(205, 64, 115);
    height: 32px;
}
.img_right {
    width: 48px;
    height: 48px;
    display: inline-block;
}
.content_container_right {
    width: 640px;
    display: inline-block;
}
.p_right {
    float: right;
    width: 500px;
    margin: 0;
    padding: 12px 10px 12px 10px;
    background: rgb(239, 253, 222);
    box-shadow: -2px -2px 1px rgb(182, 220, 192) inset;
}
.p_right::before {
    display: block;
    content: "iOS";
    color: rgb(206, 103, 27);
    height: 32px;
}