#container_cc{    
    width: 100vw;
    height: 100vh;
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
}

#main{
    margin: auto;
    margin-top: -15px;
    width: 1280px;
    height: 765px;
    position: relative;
    background-color: #ddd;
    border: 1px solid #777;
    box-shadow: 5px 7px #bbb;
}

.cc_btn{
    width: 150px;
    height: 50px;
    border: 1px solid #777;
    font-size: 20px;
    line-height: 45px;
    cursor: pointer;
    margin: 50px auto;
    text-align: center;
}

#second, #third, #fourth, #fifth, #sixth, #final{
    display: none;  
}

.header_text{
    text-align: center;
    font-size: 30px;
    line-height: 30px;
    margin-top: 40px;
}

#cc_width, #cc_height, #cc_width_win, #cc_height_win,
#cc_tv_number, #cc_comp_number, #cc_other_number{
    text-align: center;
    font-size: 24px;
    margin-top: 30px;
}

.cc_size, #room_square, #room_height, #win_height, #win_width,
#tv_quantity, #comp_quantity, #device_power {
    text-align: center;
    font-size: 20px;
}

.cc_size>img{
    margin: 40px;
}

.cc_top{
    height: 25.1px;
}

@media (max-width: 768px){
    .cc_size>img{
        margin: 10px;
    }

    .cc_top{
        height: 0px;
    }
}

.cc_model{
    text-align: center;
    margin-top: 9.6px;
}

.cc_label{
    font-size: 20px;
    margin: 2px;
}