.title_software,
.install_button,
.title_function,
.title_device,
.title_work,
.title_download {
    text-align: center;
}

.text_large {
    width: 40%;
    margin: auto;
    text-align: center;
    color: gray;
}

body {
    background-image: url("./img/bg-header-desktop.png");
    background-repeat: no-repeat;
    background-size: 100% 350px;
    background-position: top;
}

.logo_top {
    display: block;
    margin: auto;
    width: 70px;
    height: 70px;
    margin-top: 70px;
}

.install_button {
    margin: 50px 0px 130px 0px;
}

.button_ios {
    text-decoration: none;
    color: white;
    background-color: #45B9A5;
    padding: 12px 40px;
    margin-right: 5px;
    border-radius: 50px;
    cursor: pointer;
}

.button_mac {
    text-decoration: none;
    color: white;
    background-color: #6C72FC;
    padding: 12px 40px;
    margin-left: 5px;
    border-radius: 50px;
    cursor: pointer;
}

.function {
    display: flex;
    justify-content: center;
    margin-top: 60px;
    margin-bottom: 160px;
}

.pc {
    margin-right: 50px;
    height: 480px;
}

.description_title {
    font-size: 18px;
    font-weight: bold;
    margin-top: 50px;
}

.text_small {
    width: 50%;
    margin-top: -15px;
    font-size: 15px;
    color: gray;
}

.device {
    display: block;
    margin: 0px auto;
    height: 400px;
}

.work {
    display: flex;
    margin-top: 70px;
}

.blacklist,
.snippet,
.preview {
    margin: 0px auto;
    text-align: center;
}

.title_blacklist,
.title_snippet,
.title_preview {
    font-size: 20px;
    font-weight: bold;
}

.text_blacklist,
.text_snippet,
.text_preview {
    font-size: 15px;
    margin-top: -12px;
    width: 30vw;
}

.logo_sns {
    margin: 100px 0px;
    display: flex;
    justify-content: space-around;
    height: 40px;
}

.footer {
    background-color: #F5F6F8;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 30px;
}

.logo_bottom {
    height: 60px;
    width: 60px;
}

.footer_link,
.link_sns {
    text-decoration: none;
    color: gray;
    cursor: pointer;
    padding: 0px 10px;
}

.footer_link_wrapper {
    display: flex;
}

.footer_link1,
.footer_link2,
.footer_link3 {
    margin: 0px 50px;
}