html,
body {
width: 100%;
height: 100%;
}
.orange {
color: #FF9800;
}
@media (max-width: 979px) {
.custom-container {
padding-top: 61px;
}
}
.custom-container {
display: flex;
min-height: 100vh;
height: auto;
border: 1px solid black;
padding-top: 61px;
}
.inner {
padding: 5%;
border: 1px solid white;
}
.container-fluid {
overflow-y: auto;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
<a id="logo" class="nav-link col col-md-2 orange">Label</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="col col-md-8 navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link" href="#services">Services</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#photos">Photos</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#contact">Contact</a>
</li>
</ul>
</div>
</nav>
<div class="container-fluid">
<div id="services" class="custom-container justify-content-md-center">
<div class="inner col-md-10">
<div class="row"> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam convallis, mi ut pretium vestibulum, mauris leo euismod mi, et laoreet erat neque quis eros. Aenean id pellentesque erat. Pellentesque tempus purus magna, id interdum tellus egestas
a. Integer at scelerisque ipsum. Phasellus vel nibh non elit pharetra tincidunt. Nullam in pretium dui. Aliquam a consequat nulla, eu iaculis arcu. Cras posuere elit urna, sed dictum tortor laoreet ac. Donec quis massa ipsum. Fusce nec ultrices
tortor, eu congue mauris. Suspendisse hendrerit tempor scelerisque. Aliquam at urna quis diam rhoncus feugiat a non mauris. Sed eu finibus lectus, mollis posuere lacus. Cras ullamcorper auctor hendrerit. Proin euismod metus sit amet mauris placerat
euismod. Nullam venenatis sed mi at posuere. Phasellus felis quam, consectetur in vestibulum vel, posuere id dui. Pellentesque convallis viverra erat mattis vestibulum. Nam eros nulla, varius euismod lacus nec, vehicula dictum ipsum. Quisque
vel justo non elit sodales pulvinar. Donec accumsan nisi efficitur augue consequat, in efficitur mauris rhoncus. Curabitur venenatis metus lacus, ac vestibulum massa euismod vel. In non erat enim. Aenean varius pellentesque tellus eu molestie.
Sed at dolor justo. Integer interdum porttitor justo. Donec aliquet erat a consequat imperdiet. Phasellus tristique vel nunc eget consequat. Pellentesque posuere molestie placerat. Fusce egestas dignissim leo eu pellentesque. Vestibulum vehicula
tempus lectus et lobortis.
</div>
</div>
</div>
<div id="photos">
<div class="custom-container justify-content-md-center">
<div class="inner col-md-10 orange">
not out of bound 2
</div>
</div>
</div>
<div id="contact">
<div class="custom-container justify-content-md-center">
<div class="inner col-md-10">
<div class="row orange">
out of bound when screen size is small
</div>
<div class="row"> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam convallis, mi ut pretium vestibulum, mauris leo euismod mi, et laoreet erat neque quis eros. Aenean id pellentesque erat. Pellentesque tempus purus magna, id interdum tellus egestas
a. Integer at scelerisque ipsum. Phasellus vel nibh non elit pharetra tincidunt. Nullam in pretium dui. Aliquam a consequat nulla, eu iaculis arcu. Cras posuere elit urna, sed dictum tortor laoreet ac. Donec quis massa ipsum. Fusce nec ultrices
tortor, eu congue mauris. Suspendisse hendrerit tempor scelerisque. Aliquam at urna quis diam rhoncus feugiat a non mauris. Sed eu finibus lectus, mollis posuere lacus. Cras ullamcorper auctor hendrerit. Proin euismod metus sit amet mauris placerat
euismod. Nullam venenatis sed mi at posuere. Phasellus felis quam, consectetur in vestibulum vel, posuere id dui. Pellentesque convallis viverra erat mattis vestibulum. Nam eros nulla, varius euismod lacus nec, vehicula dictum ipsum. Quisque
vel justo non elit sodales pulvinar. Donec accumsan nisi efficitur augue consequat, in efficitur mauris rhoncus. Curabitur venenatis metus lacus, ac vestibulum massa euismod vel. In non erat enim. Aenean varius pellentesque tellus eu molestie.
Sed at dolor justo. Integer interdum porttitor justo. Donec aliquet erat a consequat imperdiet. Phasellus tristique vel nunc eget consequat. Pellentesque posuere molestie placerat. Fusce egestas dignissim leo eu pellentesque. Vestibulum vehicula
tempus lectus et lobortis.
</div>
</div>
</div>
</div>
Я изменил код, чтобы div получал высоту содержимого, если оно больше высоты экрана.Просто измените декларацию высоты .custom-container на «auto» вместо «100%», а минимальную высоту на «100vh».Затем вы можете удалить другие классы h-100 в вашем коде.
Даже если div является элементом блока, его высота всегда равна высоте его содержимого.Если вы хотите иметь полную высоту экрана (что означает высоту области просмотра), вам нужно изменить значение 100% на 100vh (vh = высота области просмотра).