* {
margin: 0;
}
body {
background-color: green;
}
html,
body {
height: 100%;
}
.left {
display: flex;
flex-flow: row wrap;
align-items: center;
justify-content: space-around;
order: 1;
width: 45%;
}
.middle {
display: flex;
flex-flow: column wrap;
order: 2;
width: 45%;
height: 100%;
}
.list ul {
list-style: none;
padding: 0;
}
.list a {
text-decoration: none;
color: inherit;
}
#bigwrap {
height: 100%;
}
.container {
display: flex;
position: relative;
flex-flow: row wrap;
justify-content: space-around;
align-items: stretch;
height: 100vh;
width: 80%;
margin: 5% auto 8% auto;
background-color: white;
}
.middle p:first-child {
margin-top: 8%;
}
.list ul {
list-style: none;
padding: 0;
}
.list a {
text-decoration: none;
color: inherit;
}
li {
list-style-type: none;
font-size: 18px;
}
.lihead {
font-size: 24px;
margin-bottom: 1%;
}
.stuff {
background-color: white;
margin: auto;
width: 70%;
}
.stuff ul li {
margin-bottom: 2%;
}
.center {
text-align: center;
}
.center1 {
text-align: center;
color: green;
font-size: 28px;
}
.tpoint {
font-size: 24px;
color: orange;
}
.mtop {
margin-top: 2%;
}
a {
text-decoration: none;
color: orange;
}
.foot {
display: flex;
flex-flow: row wrap;
justify-content: center;
}
.foot div {
margin-right: 1%;
}
.container .box {
border: 2px solid red;
}
@media all and (max-width: 900px) {
#bigwrap {
width: 100%;
}
.container {
flex-flow: row wrap;
min-height: 100vh;
width: 100%;
height: auto;
}
.left,
.right {
flex: 1 100%;
}
.middle {
flex-flow: row wrap;
flex-grow: 1;
flex-shrink: 1;
justify-content: center;
}
.box {
width: 70%;
text-align: center;
}
#header2 {
justify-content: space-around;
}
}
@media (min-width: 900px) and (max-width: 1100px) {
#nav {
justify-content: space-around;
}
.container {
width: 100%;
}
}
<div id="bigwrap">
<div class="container">
<div class="left">
<img src="eggs.jpg" width="209" height="205" alt="Picture of kid" />
<img src="benedict.jpg" width="209" height="205" alt="Picture of kid">
</div>
<div class="middle">
<div class="box">
<h2> Sample list </h2>
</div>
<div class="box">
<p>
Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence.
Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence.Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample
sentence. Sample sentence. Sample sentence. Sample sentence.
</p>
</div>
<div class="box">
<p>
Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence.
Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence.Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample sentence. Sample
sentence. Sample sentence. Sample sentence. Sample sentence.
</p>
</div>
</div>
</div> <!--end of container-->
<div class="stuff">
<p class="center1">Sample sample</p>
<p class="center tpoint">Sample Food</p>
<ul>
<li>Sample Mr.Sample
<ul>
<li>Samples</li>
<li>Sammple</li>
</ul>
</li>
<li>Sample
<ul>
<li>Sample</li>
<li>Sample</li>
</ul>
</li>
<li>Eggs
<ul>
<li>Sampl;e</li>
<li>Sample</li>
</ul>
</li>
<li>Sam
<ul>
<li>Sample</li>
<li>List</li>
</ul>
</li>
<li>Lists
<ul>
<li>Lists</li>
<li>Lists</li>
</ul>
</li>
</ul>
<p class="center tpoint">List</p>
<ul>
<li>List
<ul>
<li>List</li>
</ul>
</li>
<li>Sample</li>
<li>List</li>
<li>Ss</li>
<li>Samples</li>
<li>List</li>
<li>This is a sample</li>
<li>This is a sample</li>
</ul>
<p class="center tpoint">Sam</p>
<ul>
<li>Sample
<ul>
<li>Samples</li>
</ul>
</li>
<li>More samples
<ul>
<li>This is a sample</li>
</ul>
</li>
</ul>
</div> <!--end of stuff-->
</div> <!--end of bigwrap-->
Раскомментируйте высоту, установленную на «.container» вне медиа-запроса. Внутри первого медиа-запроса на «.container» установите высоту в auto, чтобы эта высота уже была установлена.