CODEWITHSUNDEEP
htmlcssheight
Roland
Roland

Reputation: 1940

Explanation why Height=100% breaks design

I have a problem with the Height Tag in CSS. I want the page to be displayed without any scrollbars and just can't figure out why when i change "height" in the body tag from 99% to 100% suddenly scrollingbars appear and break the design.

I want to know why this happens and what's the reason for it.

thanks!

<!DOCTYPE html>
<html>
<head>
<style type="text/css">

html {
    height:100%;
}

body {
    height: 99%;
    margin-left: 20px;
    margin-top:0px;

}

.gallerytitle {
    position: absolute;
    top: 20px;
    font-family: serif;
    font-size: 20px;
    text-align: left;
}

.fullgallerytitle {
text-align: left;
font-family: sans-serif;
font-size: 12px;}

.events{
position: absolute;
font-family: sans-serif;
font-size: 12px;
top: 20px;
right: 20px;}

/* Center Text Section */

.area {
  width: 100%;
  height: 100%;

  position: relative;
}

.middlespace {
  position: absolute;
  left: 50%;
  top: 50%;
  display: table;
}

.middlespace p {
  display: table-cell;
  vertical-align: middle;
  text-align: center;
}



.bottom-left {

    position: absolute;
    font:sans-serif;
    bottom: 15px;
    left: 15px;
}



.contact {
    font-size: 11px;
    font-family: sans-serif;
    border-bottom: 1px black dotted;
}

.exhibitiontitle {
    color: #d4d4d4;
    font-style: italic;
    font-family: sans-serif;
    font-size: 10px;
    text-align: center;
}

.contact {
    font-size: 11px;
    font-family: sans-serif;
    border-bottom: 1px black dotted;
}

.bold {
    font-family: serif;
}


.about {
    font-size: 11px;
    font-family: sans-serif;
}


.address {
font-size: 11px;
border-bottom: 1px grey dotted;
}




.bottom-right {
    position: absolute;
    bottom: 15px;
    right:15px;
      font-style: italic;
    color: #8e8e8e;
    font-size: 11px;
}

.openinghours {
    font-style: italic;
    color: #8e8e8e;
    font-size: 11px;
    }
.subscribebutton
{

height:10px;
font-size: 9px;

}

.subscribebox
{

height:10px;
font-size: 9px;

}



</style>

<title>XYZ</title>

</head>
<body>
    <div class="gallerytitle">XYZ<br /></div>
    <div class="events">LOREM</div>




<div class="bottom-left">
        <span class="about">

            <span class="bold">XYZ</span> is a project by XZY.&nbsp;&nbsp;&#124;&nbsp;
            <span="address">Website Information</span> &mdash; <a href="mailto:info@info.eu">info@info.com</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;


        </span>
</div>


<div class="bottom-right">
    <span class="openinghours">Open by Appointment</span><span class="">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;sponsored by XYZ</span>
</div>


</body>
</html>

Upvotes: 0

Views: 295

Answers (3)

Jared
Jared

Reputation: 12524

There is also bottom margin on the body.

body {
    height: 100%;
    margin: 0 0 0 20px;    
}

Though you should consider using a css reset such as eric meyers reset or normalize

Upvotes: 2

Che MAUVAIS COMPTE
Che MAUVAIS COMPTE

Reputation: 131

It breaks the page because you use 99% of the page, then you move everything to the right of 20px. it moves the 99% outside and use more. here is the solution, i think both of them work : 

body {
    height: 100%;
    margin-left: 20px;
    margin-right: -20px;
    margin-top:0px;
}

or 

body {
    height: 100%;
    padding-left: 20px;
    padding-right: -20px;
    margin-top:0px;
}

Upvotes: 0

Jonathan
Jonathan

Reputation: 1

Replacing your body style with this should solve the issue : 

body {
height: 100%;
margin-left: 20px;
margin:0px;

}

Upvotes: 0

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