Scrolling doesn't work on IOS browsers (Safari and Chrome)

Question

I have a mysterious CSS related problem with scrolling, I created a sample from my project here: my project. Briefly, the problem is the scrolling does not work on IOS Safari and Chrome, but it works perfectly fine in Android, any ideas? I have not observed any problems in PC. Cheers.

EDIT: The .contentContainer element needs to scroll.

I have tried these:

-webkit-overflow-scrolling: touch;
-webkit-transform: translateZ(0);

Still no luck.

android(scroll working - scroll area shown with an arrow):

ios(scroll not working):

Answer 1

I am not pretty much sure what you need, I simple allowed all scroll now which one you want

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-user-drag: none;
    position: relative;
    -webkit-tap-highlight-color:  rgba(255, 255, 255, 0);
    -webkit-overflow-scrolling: touch;


}


html,
body {
    height: 100%;
    direction: rtl;
    overflow: hidden;
    -webkit-backface-visibility: hidden;

  

}


/*===========main layout*/

body {
    font-family: "vazir";
    font-size: 14px;
    color: var(--color-text-primary);
    display: grid;

    background-color: var(--color-background-primary);

    grid-template-columns: repeat(2, 88px) repeat(10, 1fr);
    grid-template-rows: 64px repeat(11, 1fr);
}

.nav {
    background-color: var(--color-background-nav);
    grid-column: 1 / 3;
    grid-row: 1 / 13;
    -webkit-box-shadow: var(--main-shadow-vlues);
    -moz-box-shadow: var(--main-shadow-vlues);
    box-shadow: var(--main-shadow-vlues);
    z-index: 4;
    position: relative;
}
header.header {
    background-color: var(--color-background-section);
    grid-row: 1 / 2;
    grid-column: 3 / 13;

    -webkit-box-shadow: var(--main-shadow-vlues);
    -moz-box-shadow: var(--main-shadow-vlues);
    box-shadow: var(--main-shadow-vlues);
    z-index: 2;
    position: relative;
}
.main {
    grid-row: 2 / 13;
    grid-column: 3 / 13;
    z-index: 1;
    position: relative;
}


/*========nav styles*/

.nav {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: 16px;
    color: var(--color-text-nav);
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    height: 100vh;
    overflow-y: auto;
}


.nav .navigation {
    height: calc(100% - 152px);
}
.nav  header {
    display: flex;
    width: 100%;
    height: 136px;
    padding: 16px 0;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-text-inactive);
    margin-bottom: 16px;
}
.nav .navLogo {
    background-image: var(--logo-nav);
    background-repeat: no-repeat;
    background-position: center;
    background-size: 72px;
    width: 64px;
    height: 64px;
}
.nav .logout {
    height: 48px;
    line-height: 48px;
    font-size: .8em;
    background-image: var(--icon-exit);
    background-size: 24px;
    background-repeat: no-repeat;
    background-position: right center;
    padding-right: 32px;
    cursor: pointer;
    border: 1px solid var(--color-border-light);
    margin-bottom: 16px;
    border-radius: 4px;
}
.nav .navigation .navItem {
    min-height: 48px;
    cursor: pointer;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    position: relative;
}
.nav .navSection.title {
    background-image: var(--icon-nav-dropdown);
    background-repeat: no-repeat;
    background-position: left 0 top 0;
}
.nav [data-collapsed='false'] .navSection.title {
    background-image: var(--icon-nav-pullup);
}
.nav .navigation .navItem[data-collapsed = true] {
    height: 48px;
}
.nav .navigation .navItem[data-collapsed = true] .navSubsection {
    display: none;
}
.nav .navigation .navItem a {
    display: block;
    line-height: 48px;
    color: var(--color-text-nav-inactive);
    text-decoration: none;
    position: relative;
    user-drag: none;
    -webkit-user-drag: none;

}
.nav .navigation .navItem a.active {
    color: var(--color-text-nav-active);
}
.nav .navigation .navItem a:hover:not(.active) {
    color: var(--color-text-nav-hover);
}
.nav .navigation .navItem a.navSubsection {
    line-height: 32px;
    padding-right: 12px;
}





/*============header styles*/
header.header {
    display: flex;
    justify-content: space-between;

}
header.header .userInfo {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    user-select: none;
}
header.header .userName {
    line-height: 64px;
}

/*icon=================================*/
.iconContainer {
    display: flex;
    height: 100%;
    padding: 8px;
    align-items: center;
    justify-content: center;
}
.icon {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-size: 20px 20px;
    background-repeat: no-repeat;
    background-position: center;
}

/*=======================main section styles*/

main.main {
/*     overflow: hidden; */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
.mainContainer {
    background-color: var(--color-background-section);
    border-radius: 4px;
    height: 100%;
    padding: 16px;
/*     overflow: hidden; */
    -webkit-box-shadow: var(--main-shadow-vlues);
    -moz-box-shadow: var(--main-shadow-vlues);
    box-shadow: var(--main-shadow-vlues);
    display: grid;
    grid-template-rows: minmax(48px, auto) 1fr;

}
.sectionHeader {
    display: flex;
    border-bottom: 1px solid var(--color-border-heavy);
}
.sectionHeader h1 {
    font-size: 1em;
}
.sectionHeader h2 {
    font-size: 1.5em;
    margin-right: 1em;
}

.mainContainer > .contentContainer {
    margin-top: 16px;
    height: calc(100% - 16px);
    overflow: auto;

}
.tabContent .contentContainer {
    height: 100%;
}


/*=====================widget styles*/
section.widgetGrid {
    min-width: 280px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    grid-gap: 16px;
}
div.widget {
    position: relative;
    height: 128px;
    border: 1px solid #222;
    background-size: 96px;
    background-repeat: no-repeat;
    background-position: top 16px right 16px;
    padding: 16px 128px 16px 16px;
    text-align: center;
    font-weight: var(--font-weight-paragraph);
    border-radius: 4px;
}

/*media queries======================================================*/
@media screen and (max-width: 768px) {
    body {
        grid-template-columns: 1fr;
        grid-template-rows: 64px repeat(10, 1fr) 64px;
        position: relative;
    }
    .nav {
        width: 176px;
        position: absolute;
        height: 100vh;
        right: -176px;
        top: 0;
        -webkit-box-shadow: none;
        -moz-box-shadow: none;
        box-shadow: none;
        transition: right var(--default-transition);

    }
    .nav.visible {
        right: 0;
        -webkit-box-shadow: var(--main-shadow-vlues);
        -moz-box-shadow: var(--main-shadow-vlues);
        box-shadow: var(--main-shadow-vlues);
    }
    header.header {
        grid-column: 1 / 2;
        grid-row: 1 / 2;
    }

    .main {
        grid-column: 1 / 2;
        grid-row: 2 / 13;
    }

}

<html lang="en"><head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">

 
    <title>پنل مدیریتی نفیس</title>
</head>
<body data-theme="light">
<header class="header">
    <section class="iconContainer">
        <div class="icon intractable hamburger"></div>
        <div class="icon intractable theme"></div>
    </section>
    <section class="userInfo">
        <div class="userName">
            <span class="userFirstName">آرش</span>
            <span class="userLastName">چایچی</span>
        </div>
        <div class="userAvatar"></div>
    </section>
</header>
<nav class="nav">
    <div class="icon intractable hideNav"></div>
    <header>
        <div class="navLogo"></div>
        <h3 class="navHeaderTitle">پنل ادمین نفیس</h3>
    </header>
    <section class="logout">
        <span>خروج از حساب کاربری</span>
    </section>
    <section class="navigation">
        
        
        
                    <div class="navItem open" data-collapsed="false">
                        <a href="#" class="navSection active" id="dashboard">داشبورد</a>
                    </div>
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
                        <div class="navItem" data-collapsed="true">
                            <a href="#" class="navSection title" id="commission">پورسانت</a>
        
                                <a href="#" class="navSubsection" id="commissionCalculation">محاسبه</a>
        
                                <a href="#" class="navSubsection" id="internCommissionSettings">تنظیمات آغازگر</a>
        
                                <a href="#" class="navSubsection" id="voucherCommissionSettings">تنظیمات معرف</a>
        
                                <a href="#" class="navSubsection" id="multiLevelCommissionSettings">تنظیمات چندسطحی</a>
        
                                <a href="#" class="navSubsection" id="retailCommissionSettings">تنظیمات خرده فروشی</a>
        
                                <a href="#" class="navSubsection" id="nafisCommissionSettings">تنظیمات نفیس</a>
        
                                <a href="#" class="navSubsection" id="nafisNetworkerCommissionSettings">تنظیمات نفیس شبکه&zwnj;ساز</a>
        
                                <a href="#" class="navSubsection" id="networkerCommissionSettings">تنظیمات شبکه&zwnj;ساز</a>
        
                                <a href="#" class="navSubsection" id="supporterCommissionSettings">تنظیمات حامی</a>
        
                                <a href="#" class="navSubsection" id="managersCommissionSettings">تنظیمات مدیران</a>
        
                                <a href="#" class="navSubsection" id="seniorManagersCommissionSettings">تنظیمات مدیران ارشد</a>
        
                        </div>
        
        
        
        
        
        
        
        
        
        
        
        
        
        
                        <div class="navItem" data-collapsed="true">
                            <a href="#" class="navSection title" id="orders">سفارش&zwnj;ها</a>
        
                                <a href="#" class="navSubsection" id="ordersList">لیست سفارش&zwnj;ها</a>
        
                                <a href="#" class="navSubsection" id="warehouseExit">خروج از انبار</a>
        
                        </div>
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
        
                        <div class="navItem" data-collapsed="true">
                            <a href="#" class="navSection title" id="productsSection">محصولات</a>
        
                                <a href="#" class="navSubsection" id="brands">برندها</a>
        
                                <a href="#" class="navSubsection" id="categories">گروه&zwnj;ها</a>
        
                                <a href="#" class="navSubsection" id="products">محصولات</a>
        
                                <a href="#" class="navSubsection" id="productsLogs">تاریخچه&zwnj;ی محصولات</a>
        
                        </div>
        
        
        
        
        
        
        
        
        
        
        
        
        
        
                        <div class="navItem" data-collapsed="true">
                            <a href="#" class="navSection title" id="roles">نقش&zwnj;ها</a>
        
                                <a href="#" class="navSubsection" id="rolesSettings">تنظیمات</a>
        
                                <a href="#" class="navSubsection" id="userRoles">کاربران</a>
        
                        </div>
        
        
        
        
        
        
        
        
        
        
        
        
                        <div class="navItem" data-collapsed="true">
                            <a href="#" class="navSection title" id="settings">تنظیمات</a>
        
                                <a href="#" class="navSubsection" id="changePassword">تغییر کلمه&zwnj;ی عبور</a>
        
                        </div>
        
        
        
    </section>
</nav>

<main class="main">
    <section class="mainContainer">
        <header class="sectionHeader">
            <h1>داشبورد</h1>
            <h2>داشبورد</h2>
        </header>
        <section class="contentContainer">

        <section class="widgetGrid"><div class="widget sales"><span class="day">سه شنبه</span><span class="date">10</span><h2>فروش امروز</h2><span class="money">119,618,950</span></div><div class="widget invoice"><span class="day">سه شنبه</span><span class="date">10</span><h2>تعداد فاکتور امروز</h2><span class="info">297</span></div><div class="widget sales"><span class="month">دی</span><span class="year">1398</span><h2>فروش ماه</h2><span class="money">3,787,818,130</span></div><div class="widget invoice"><span class="month">دی</span><span class="year">1398</span><h2>تعداد فاکتور ماه</h2><span class="info">10,029</span></div><div class="widget sales"><span class="day">سه شنبه</span><span class="date">10</span><h2>فروش امروز</h2><span class="money">119,618,950</span></div><div class="widget invoice"><span class="day">سه شنبه</span><span class="date">10</span><h2>تعداد فاکتور امروز</h2><span class="info">297</span></div><div class="widget sales"><span class="month">دی</span><span class="year">1398</span><h2>فروش ماه</h2><span class="money">3,787,818,130</span></div><div class="widget invoice"><span class="month">دی</span><span class="year">1398</span><h2>تعداد فاکتور ماه</h2><span class="info">10,029</span></div></section></section>
    </section>
</main>
<div class="navScrim"></div></body></html>