.fadenav {
    width: 90%;
    margin: 0 auto;
}

.box_left { 
    width: 45%;
    display: block;
    float: left;
    margin: 10px 5px;
    text-align: center;
    background-color:  #FFF;
    border-radius: 10px;
    color: #333;
    /* filter: drop-shadow(10px 10px 20px  rgba(100, 100, 100, 0.3)); */
    box-shadow: 10px 10px 20px 0 rgba(100, 100, 100, 0.3);
}

.box_right { 
    width: 45%;
    display: block;
    float: right;
    margin: 10px 5px;
    text-align: center; 
    background-color:  #FFF;
    border-radius: 10px;
    color: #333;
    /* filter: drop-shadow(10px 10px 20px  rgba(100, 100, 100, 0.3)); */
    box-shadow: 10px 10px 20px 0 rgba(100, 100, 100, 0.3);
}

.box_left img {
    margin: 10px auto;
}

.box_right img {
    margin: 10px auto;
}

.box_left h2 {
    margin: 0 auto;
    line-height: 38px;
}

.box_right h2 {
    margin: 0 auto;
    line-height: 38px;
}

.box_right a {
    display: block;
}

.box_left a {
    display: block;
}

.device_icon {
    display: block;
    float: right;
    width: 90%;
    margin: 4px 20px;
}

.device_icon ul {
    list-style: none;
    text-align: center;
    margin: 0 14px;
    padding: 0;
}

.device_icon ul li {
    background-color: #fff;
    float: right;
    font-size: 14px;
    color: #333;
    height: 20px;
    min-width: 24px;
    padding-left: 8px;
    padding-right: 8px;
    margin: 0 2px;
    filter: drop-shadow(
        1px 1px 4px /* 水平 垂直 ぼかし */
        rgba(100, 100, 100, 0.4))
}


.box_text {
    display: inline-block;
    text-align: center;
    margin: 4px 10px 4px;
}

.box_text p {
    display: inline-block;
    font-size: 14px;
    text-align: left;
}

@media screen and (max-width : 767px){
    .box_left { 
        float: none;
        margin: 20px auto;
        width: 100%;
    }

    .box_right { 
        float: none;
        margin: 0 auto;
        width: 100%;
    }

    .box_left p { 
        font-size: 16px;
        text-align: left;
    }

    .box_right p { 
        font-size: 16px;
        text-align: left;
    }
}


@media screen and (max-width: 374px) {
    .box_left p { 
        font-size: 14px;
    }

    .box_right p { 
        font-size: 14px;
    }
}

/*
.softwares h1 {
    font-size: 32px;
    font-weight: bold;
    margin-top: 20px;
    text-align: center;
    color: #222;
}

.softwares p {
    font-size: 18px;
    line-height: 30px;
    text-align: center;
    color: #333;
    padding-bottom: 80px;
}
*/

/*
.software_icon_box {
    float: left;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
}

.software_icon_box img {
    width: 80%;
    height: 80%;
}

.software_name_box {
    float: left;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    vertical-align: middle;
}

.software_name_box h2 {
    display: inline;
    padding-left: 10px;
}
*/