This gap is caused by line-height in p tag:
.vertical p{
line-height: 0;
}
.vertical a{
line-height: 100%;
}
Solution 1 :
Solution 2 :
use font-size: 0;
cause one blank Between them(X)
cause font-size: 0; so line-height: 0;(O)
* {
margin: 0;
padding: 0;
/* font-family: arial, verdana, tahoma; */
}
.fzZero{
font-size: 0;
}
div {
margin: 1em 2em;
}
div::after {
content: "";
clear: both;
display: table;
}
ul {
padding-top: 20px;
position: relative;
transition: all 0.5s;
-webkit-transition: all 0.5s;
-moz-transition: all 0.5s;
}
li {
float: left;
text-align: center;
list-style-type: none;
position: relative;
padding: 20px 5px 0 5px;
transition: all 0.5s;
-webkit-transition: all 0.5s;
-moz-transition: all 0.5s;
}
/*We will use ::before and ::after to draw the connectors*/
li::before, li::after{
content: '';
position: absolute; top: 0; right: 50%;
border-top: 1px solid #ccc;
width: 50%; height: 20px;
}
li::after{
right: auto; left: 50%;
border-left: 1px solid #ccc;
}
/*We need to remove left-right connectors from elements without
any siblings*/
li:only-child::after, li:only-child::before {
display: none;
}
/*Remove space from the top of single children*/
li:only-child{ padding-top: 0;}
/*Remove left connector from first child and
right connector from last child*/
li:first-child::before, li:last-child::after{
border: 0 none;
}
/*Adding back the vertical connector to the last nodes*/
li:last-child::before{
border-right: 1px solid #ccc;
border-radius: 0 5px 0 0;
-webkit-border-radius: 0 5px 0 0;
-moz-border-radius: 0 5px 0 0;
}
li:first-child::after{
border-radius: 5px 0 0 0;
-webkit-border-radius: 5px 0 0 0;
-moz-border-radius: 5px 0 0 0;
}
/*Time to add downward connectors from parents*/
ul ul::before{
content: '';
position: absolute; top: 0; left: 50%;
border-left: 1px solid #ccc;
width: 0; height: 20px;
}
li a{
border: 1px solid #ccc;
padding: 5px 5px;
text-decoration: none;
color: #666;
font-family: arial, verdana, tahoma;
font-size: 12px;
display: inline-block;
border-radius: 5px;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
transition: all 0.5s;
-webkit-transition: all 0.5s;
-moz-transition: all 0.5s;
}
/* This gonna cause the space */
.vertical a {
writing-mode: vertical-lr;
}<html>
<head></head>
<body>
<div class="vertical fzZero">
<ul>
<li>
<p><a href="#">one<br>two<br>tt</a></p>
<ul>
<li><a href="#">three</a></li>
</ul>
</li>
</ul>
</div>
<hr>
<div class="normal">
<ul>
<li>
<p><a href="#">four<br>five</a></p>
<ul>
<li><a href="#">six</a></li>
</ul>
</li>
</ul>
</div>
</body>
</html>Problem :
I created an unordered list in HTML,
and used some lines to show the relations,
but when I rotate the text with
writing-mode: vertical-rl;
I got a gap between <p> and inner <a> like this:
The element <a> contains one<br>two, and its parent <p> has only one child.
And this is my code on codepen, how can I eliminate the gap pointed by the red arrow?
Comments
Comment posted by Windsting
I tried this, it does removed the gap, but it also removed the margin of the
Comment posted by donkey
mh…, cause font-size: 0 make line-height: 0 , so right answer is “line-height: 0”!