Aligning Text and Select Boxes to The Same Width in CSS

Aligning text and select boxes to the same width in CSS?

This is because the <input type="text" /> element has a slightly different default style to the <select> element e.g. the border, padding and margin values may be different.

You can observe these default styles through an element inspector such as Firebug for Firefox or the built-in one for Chrome. Futhermore, these default stylesheets differ from browser to browser.

You have two options:

Explicitly set the border, padding and margin values to be the same for both elements
A CSS reset stylesheet to be included before your own CSS stylesheets

I would go with option 1. because option 2. requires a lot of work and you'll end up with tons of unnecessary CSS. But some web developers prefer to start from scratch and have complete control.

How to get equal width of input and select fields

Updated answer

Here is how to change the box model used by the input/textarea/select elements so that they all behave the same way. You need to use the box-sizing property which is implemented with a prefix for each browser

-ms-box-sizing:content-box;
-moz-box-sizing:content-box;
-webkit-box-sizing:content-box; 
box-sizing:content-box;

This means that the 2px difference we mentioned earlier does not exist..

example at http://www.jsfiddle.net/gaby/WaxTS/5/

note: On IE it works from version 8 and upwards..

Original

if you reset their borders then the select element will always be 2 pixels less than the input elements..

example: http://www.jsfiddle.net/gaby/WaxTS/2/

align list items with the same width

Simple. You have spaces in your html. This is always a problem with inline block elements. Remove them and the spaces in your result go away. See this explanation: https://css-tricks.com/fighting-the-space-between-inline-block-elements/

http://codepen.io/ruchiccio/pen/YWKRVQ

<ul>
  <li><a> first</a></li><li><a> second</a></li><li><a> third</a></li><li><a> fourth</a></li>
</ul>

HTML, CSS - Make text box width same

You can use box-sizing: border-box; to make alignment of input widths easier cross browser (it takes into account the padding, border, and content widths). It also makes calculations of widths in a pre-processor like Sass really simple.

input[type="text"] {
    box-sizing: border-box;
}

input[name="cnop"] {
    width: 33px;
}

input[name="cno"] {
     width: 122px;   
}

input[name="cpono"] {
    width: 155px;   
}

Check the fiddle: https://jsfiddle.net/mshtacea/

CSS: making the select field width and height same as all other input fields?

problem is with padding when you are removing the padding width of inputs are same.Otherwise you can use box-sizing.When use this padding will be subtracted from the width.

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.form-control{display:block;width:100%;padding:6px 12px;font-size:14px;line-height:1.42857143;color:#555;background-color:#fff;background-image:none;border:1px solid #ccc;border-radius:4px;-webkit-box-shadow:inset 0 1px 1px rgba(0,0,0,.075);box-shadow:inset 0 1px 1px rgba(0,0,0,.075);-webkit-transition:border-color ease-in-out .15s,-webkit-box-shadow ease-in-out .15s;-o-transition:border-color ease-in-out .15s,box-shadow ease-in-out .15s;transition:border-color ease-in-out .15s,box-shadow ease-in-out .15s}.form-control:focus{/*border-color:#66afe9;outline:0;-webkit-box-shadow:inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6);box-shadow:inset 0 1px 1px rgba(0,0,0,.075),0 0 8px 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.form-control{padding-right:42.5px}.form-control-feedback{position:absolute;top:0;right:0;z-index:2;display:block;width:34px;height:34px;line-height:34px;text-align:center;pointer-events:none}.form-group-lg .form-control+.form-control-feedback,.input-group-lg+.form-control-feedback,.input-lg+.form-control-feedback{width:46px;height:46px;line-height:46px}.form-group-sm .form-control+.form-control-feedback,.input-group-sm+.form-control-feedback,.input-sm+.form-control-feedback{width:30px;height:30px;line-height:30px}.has-success .checkbox,.has-success .checkbox-inline,.has-success .control-label,.has-success .help-block,.has-success .radio,.has-success .radio-inline,.has-success.checkbox label,.has-success.checkbox-inline label,.has-success.radio label,.has-success.radio-inline label{color:#3c763d}.has-success .form-control{border-color:#3c763d;-webkit-box-shadow:inset 0 1px 1px rgba(0,0,0,.075);box-shadow:inset 0 1px 1px rgba(0,0,0,.075)}.has-success 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<div class="form-group"><input type="text" class="form-control newins" id="coll" placeholder="Collection"></div> <div class="form-group"><select id="len" class="form-control newins" ><option value="">Length</option><option value="1">1</option><option value="2">2</option><option value="3">3</option></select></div>

CSS Positioning: Same width in percent, but one div seems to get smaller

On this line remove colspan="2"

<tr class="content">
    <td class="hspace border-color">              
        <td class="border-color" colspan="2"> <--- here

And the reason is your table rows are of different width, the "days" row is 1174px and the "content" row is 1204px, so 14.28% of that width gives two different values

What is the correct css width to make these text boxes line up?

This the following approach involves CSS3 box-sizing and calc(). It works fine on IE9+ and all modern browsers.

table {  width: 100%;}input,select {  box-sizing: border-box;  display: inline-block;}#topTextbox {  width: 100%;}select {  width: calc(30% - 4px);  /* why 4px? http://stackoverflow.com/q/5078239/483779 */}#bottomTextbox {  width: 70%;}

<table>  <tr>    <td>      <input type="text" id="topTextbox" />    </td>  </tr>  <tr>    <td>      <select>        <option value="0"></option>        <option value="saab">Saab</option>        <option value="mercedes">Mercedes</option>      </select>      <input type="text" id="bottomTextbox" />    </td>  </tr></table>

Aligning Text and Select Boxes to The Same Width in CSS