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Summary of some common problems with CSS_html/css_WEB-ITnose

WBOY
Release: 2016-06-24 11:50:52
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1. Problems with the border

[The border is a dotted line]

border:1px dashed #ddd;
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[The border is a solid line]

 border:1px solid #ddd; 
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[Add underline border to tr in table]

Make the following statement in css

 .mytable{border-collapse: collapse;} 
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[The cells in the table appear with discontinuous borders]

<table cellspacing="0" cellpadding="0"></table>
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2. Problems with some form parts


[Add text optional information to radio/check selections]


<form>  <label for="male">Male</label>  <input type="radio" name="sex" id="male" />  <br />  <label for="female">Female</label>  <input type="checkbox" name="sex" id="female" /></form>
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Note that the value of the for attribute when using the label tag corresponds to the value of the id attribute of the element in the form


3. Problems with the table part


[Alignment problem of text within td]

[Vertical alignment of td text]

<td valign="top"></td>
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Attribute optional values: top middle bottom bottom baseline

[td text horizontal alignment]

<td align="center"></td>
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Attribute optional Value: left right center justify

[Set row height in tr]

It is not recommended to use the height attribute as this will hide some content

 line-height:15px; /*建议使用此属性*/
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[If the content in td is empty]

Please use space characters to fill:  
In this way, even if there is no content, the blank will still be filled in

[in table tr plus underline border]

Make the following statement in css

 .mytable{border-collapse: collapse;}  tr{border:1px solid #ddd;}
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4. Scroll bar part Problem

[I don’t want the scroll bar to appear]

 overflow:hidden;
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[I don’t want the horizontal scroll bar to appear]
 overflow-x:hidden; overflow-y:auto;
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[I don’t want the vertical scroll bar to appear 】

 overflow-y:hidden; overflow-x:auto;
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[I don’t want the scroll bar to appear but the vertical height will grow automatically with the content]

 overflow-x:hidden; overflow-y:auto; min-hight :xxx px;
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[Note:] When using this method, you must ensure that the self-increasing height includes padding and margin. Otherwise, a vertical scroll bar will still appear

Then what needs to be paid attention to is the elements in the dom (except height In addition, margin and padding must also be considered) and do not exceed the actual height of the parent container

[Then just modify some parameters in the horizontal direction as above]

[If you want the scroll bar to appear, but it will appear in the browser Device border scroll bar]

overflow:visible;
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