javascript - 移动 Android Chrome 不滚动网站？

Question

我在一个网站上工作，滚动到 android 移动设备上的 about 部分不起作用。我受到某些东西的限制，我不知道是什么。我已经通过溢出搜索希望找到解决方案，但所有建议都没有奏效。这是我的测试网站链接：测试网站

这是主要的CSS：

    html
{
  overflow: scroll;  
}

/*PARALLAX CSS */
.paral
{
    min-height: 600px;
    background-attachment: fixed;
    background-size: cover;
    background-position: 50% 50%;
    width: 100%;
    height:100vh;
}
.paral-about
{
    min-height: 100px;
    background-attachment: fixed;
    background-position: 50% 50%;
    width: 200vw;
    height: 20vh;
    background-image: url(images/about_image.jpeg);
}
.paral p
{
    font-size: 4vh;
    color:white;
    text-align: center;
}
.paral h1
{
    color: white;
    font-size: 8vh;
    text-align: center;
    padding-top: 40px;
    word-wrap:normal;
}
.paral strong
{
    color:skyblue;
}
.paral-padded
{
    padding-top: 20vh;;
}
.paral-home-setting
{
    width: 45vw;
}

/*Image for Parallax Section */
.paralhome
{
    background-image:url(images/home_image.jpeg);
    background-size: cover;
}
.paralabout
{
    background-color: black;
}
.paralservice
{
    background-color: blue;
}
.paralpricing
{
    background-color: purple;
}
.paralcontact
{
    background-color: magenta;
}
/*JUMBOTRON*/
.jumbotron
{
    margin-bottom: 0;
}
/*NAVIGATIONAL CSS*/
.nav-right
{
    padding-right: 10vw;
}
.nav-left
{
    padding-left: 10vw;
}
.nav-text-font
{
    font-family: 'Exo 2', sans-serif;
}
/*Homepage Button CSS */
.btn-home-margin
{
    margin-top:20px;
    width:200px;
}

/*Other Stationary Rules*/
.normalized-padding
{
    padding-top: 20px;
}

这是媒体查询CSS：

    /*For Regular Laptops*/
@media screen and (max-width:1440px)
{
    body
    {
    }
    .paral
    {
    min-height: 60vh;
    background-attachment: fixed;
    background-size: cover;
    background-position: 50% 50%;
    width: 100%;
    height:100vh;
    }
    .paral-padded
    {
        padding-top: 12vh;;
    }
    .paral h1
    {
        color: white;
        font-size: 5vw;
        text-align: center;
        padding-top: 4vh;
        word-wrap:normal;
    }
    .paral p
    {
        font-size: 4vh;
        color:white;
        text-align: center;
    }
    .paral-home-setting
    {
        width: 60vw;
    }
    .btn-home-margin
    {
        margin-top:6vh;
        width:43vh;
        font-size: 3vw;
    }
    .nav-right
    {
        padding-right: 10vw;
        font-size: 1.5vw
    }
    .nav-left
    {
        padding-left: 10vw;
        font-size: 1.8vw
    }

}
/*For Larger Tablets*/
@media screen and (max-width:1024px)
{
    body
    {
    }
    .paral
    {
        min-height: 60vh;
        background-attachment: fixed;
        background-size: cover;
        background-position: 50% 50%;
        width: 100%;
        height:100vh;
    }
    .paral-padded
    {
        padding-top: 12vh;;
    }
    .paral h1
    {
        color: white;
        font-size: 6vw;
        text-align: center;
        padding-top: 4vh;
        word-wrap:normal;
    }
    .paral p
    {
        font-size: 4vh;
        color:white;
        text-align: center;
    }
    .paral-home-setting
    {
        width: 60vw;
    }
    .btn-home-margin
    {
        margin-top:5vh;
        width:30vh;
        font-size: 4vw;
    }
    .nav-right
    {
        padding-right: 10vw;
        font-size: 20px;
    }
    .nav-left
    {
        padding-left: 10vw;
        font-size:22px;
    }


}
/*For Regular Tablets*/
@media screen and (max-width:768px)
{
    body
    {
    }
    .paral
    {
        min-height: 60vh;
        background-attachment: fixed;
        background-size: cover;
        background-position: 50% 50%;
        width: 100%;
        height:100vh;
    }
    .paral-padded
    {
        padding-top: 12vh;;
    }
    .paral h1
    {
        color: white;
        font-size: 8vw;
        text-align: center;
        padding-top: 4vh;
        word-wrap:normal;
    }
    .paral p
    {
        font-size: 4vh;
        color:white;
        text-align: center;
    }
    .paral-home-setting
    {
        width: 70vw;
    }
    .btn-home-margin
    {
        margin-top:5vh;
        width:40vh;
        font-size: 6vw;
    }
    .nav-right
    {
        padding-right: 10vw;
        font-size: 20px;
    }
    .nav-left
    {
        padding-left: 10vw;
        font-size:22px;
    }


}
/*For Regular Smartphones*/
@media screen and (max-width:420px)
{
    body
    {
    }
    .paral
    {
        min-height: 60vh;
        background-attachment: fixed;
        background-size: cover;
        background-position: 50% 50%;
        width: 100%;
        height:100vh;
    }
    .paral-padded
    {
        padding-top: 12vh;;
    }
    .paral h1
    {
        color: white;
        font-size: 9vw;
        text-align: center;
        padding-top: 4vh;
        word-wrap:normal;
    }
    .paral p
    {
        font-size: 4vh;
        color:white;
        text-align: center;
    }
    .paral-home-setting
    {
        width: 80vw;
    }
    .btn-home-margin
    {
        margin-top:6vh;
        width:30vh;
        font-size: 6vw;
    }
    .nav-right
    {
        padding-right: 10vw;
        font-size: 20px;
    }
    .nav-left
    {
        padding-left: 10vw;
        font-size:22px;
    }


}
/*For Older Smartphones*/
@media screen and (max-width:420px)
{
    body
    {
    }
    .paral
    {
        min-height: 60vh;
        background-attachment: fixed;
        background-size: cover;
        background-position: 50% 50%;
        width: 100%;
        height:100vh;
    }
    .paral-padded
    {
        padding-top: 14vh;;
    }
    .paral h1
    {
        color: white;
        font-size: 9.5vw;
        text-align: center;
        padding-top: 4vh;
        word-wrap:normal;
    }
    .paral p
    {
        font-size: 4vh;
        color:white;
        text-align: center;
    }
    .paral-home-setting
    {
        width: 85vw;
    }
    .btn-home-margin
    {
        margin-top:4vh;
        width:32vh;
        font-size: 5vw;
    }
    .nav-right
    {
        padding-right: 10vw;
        font-size: 20px;
    }
    .nav-left
    {
        padding-left: 10vw;
        font-size:22px;
    }


}

我一点也不明白为什么会出现这个问题。我已经尝试过溢出-y：滚动；但这没有用（我将该代码放在 CSS 和 mediacss 的正文中。任何建议都会非常感激！谢谢！

标签： javascripthtmlcsstwitter-bootstrapmobile