我制作的网页不允许我滚动。我怎样才能解决这个问题？除了查看代码之外，您还可以在此地址查看实时网站 此外，这些选项卡仅在某些 Web 浏览器上查看。如何在所有浏览器上制作它？
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<header>
<h1>The Down Syndrome Awareness Foundation (DASF)</h1>
</header>
<div id="image">
<img src="img/zoom.png">
<a href="img/big.JPG" class="MYCLASS" title="DSAF Logo">
<img src="img/small.JPG" title="Our Logo">
</a>
</div>
<div id="back" >
<img src="img/back.png" alt-text="Back" title="Back">
</div>
<div role="main" id="container">
<div id="primary">
<h2>TITLE ONE</h2>
</pre>
<p>TEXT</p>
<p>MORE TEXT, ANOTHTER PARAGRAPH</p>
</div>
<div id="content" class="one-edge-shadow">
<!-- <h2>Main content</h2> -->
<div id="tabContainer">
<div class="tabs">
<ul>
<li id="tabHeader_1">About the Disorder</li>
<li id="tabHeader_2">TAB 2</li>
<li id="tabHeader_3">Commercial</li>
</ul>
</div>
<div class="tabscontent">
<div class="tabpage" id="tabpage_1">
<h2>HEADER ONE</h2>
<p><strong>What is Down Syndrome?:</strong></p>
<p></p>
<p><strong>Quality of Life:</strong></p>
<ul>
<li>A person with Down Syndrome in 1900 could expect to live to about 9-11 years. Now, patients with Down Syndrome live to 50 years old, with a ratio of 1:10 living to 70
<li>About 92% of pregnant women with babies with Down Syndrome elect to terminate the pregnancy
<li>Rate of bullying to children is increased to children with disorders is much higher
<li>Increase risk for Alzheimer’s Disease, Cancers, Celiac Disease, and Vision and Hearing Impairment
</ul>
<p><strong>Severity:</strong></p>
<p></p>
<p><strong>Famous Cases:</strong></p>
<p></p>
<p><strong>Special Olympics:</strong></p>
<p></p>
</div>
<div class="tabpage" id="tabpage_2">
<h2>HEADER 2</h2>
<hr>
<p><strong>Clinical Science</strong></p>
<p></p>
<p><strong>Causes:</strong></p>
<ul>
<li>Having a third copy, or part of a third copy of chromosome 21
<li>1% of cases are hereditary, the other 99% of cases are random or based on the mother’s age being over thirty-five (35) years
</ul>
<p><strong>Symptoms:</strong></p>
<ul>
<li>Delayed physical, social, and intellectual development</li>
<li>Decreased muscle tone</li>
<li>Short neck, excess skin on the back of the neck</li>
<li>Flattened facial profile</li>
<li>Upward slanting eyes</li>
<li>Skin fold that comes out from the upper eyelid and covers the corner of the eye</li>
<li>Wide, short hands and short fingers</li>
<li>A single deep crease in the palm of the hand</li>
<li>White spots on the coloured part of the eye</li>
<li>Deep groove between the first and second toes</li>
</ul>
<p><strong>Treatment</strong></p>
<p>There is no cure for Down Syndrome, however there are treatments to minimalise the symptoms and the conditions associated with them. Speech and coordination can be improved by occupational therapy and special education.</p>
<p><strong>Heart Defects Related to Down Syndome</strong></p>
<p></p>
</div>
<div class="tabpage" id="tabpage_3">
<h2>As Seen on "The Today Show"</h2>
<p>PARAGRAPH ONE BECAUSE I'M SO LAZY AND CAN'T ADD MORE, SORRY</p>
</div>
</div>
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<p><strong>target ÷ context = result</strong></p> -->
<div id="button-box">
<a class="button">About Us</a>
</div>
</div>
<div id="secondary" class='visuallyhidden'>
<h2>Seconday Sidebar</h2>
<pre>
#secondary {
float:left;
width:25%;
}
</pre>
<p>One potential gotcha is if you change font-sizes on internal containers. That can change the context of measurements inside the container.</p>
<p>You can mitigate this problem by changing font sizes on elements other than the containers themselves.</p>
</div>
</div>
<div id="remedy" class="one-edge-shadow">
<h2>Meet the Team</h2>
<p>I CAN PUT BULLETS IN LATER</p>
<p>BUT IM JUST SO TIRED</p>
<p>DURRRRR</p>
<p><strong>I CAN EVEN MAKE IT BOLD!</strong></p>
</div>
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