Html css columns width

CSS column-width Property

The column-width property specifies the column width.

The number of columns will be the minimum number of columns needed to show all the content across the element.

column-width is a flexible property. Think of column-width as a minimum width suggestion for the browser. Once the browser cannot fit at least two columns at your specified width then the columns will stop and drop into a single column.

Default value:	auto
Inherited:	no
Animatable:	yes. Read about animatable Try it
Version:	CSS3
JavaScript syntax:	object.style.columnWidth=»100px» Try it

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Numbers followed by -webkit- or -moz- specify the first version that worked with a prefix.

CSS Syntax

Property Values

Value	Description	Demo
auto	Default value. The column width will be determined by the browser	Demo ❯
length	A length that specifies the width of the columns. The number of columns will be the minimum number of columns needed to show all the content across the element. Read about length units	Demo ❯
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit

More Examples

Example

Divide the text in a element into three columns:

Example

Specify a 40 pixels gap between the columns:

Example

Specify the width, style, and color of the rule between columns:

Источник

column — width

Какой ширины должны быть колонки, на которые вы разобьёте текст?

Время чтения: меньше 5 мин

Обновлено 20 декабря 2021

Кратко

Скопировать ссылку «Кратко» Скопировано

Свойство column — width управляет шириной колонок, на которые разбивается контент элемента.

Как пишется

Скопировать ссылку «Как пишется» Скопировано

Можно указать ширину колонки в любых единицах измерения, кроме процентов. Значение должно быть положительным.

 p  column-width: 250px; column-width: 15vw; column-width: 10em;> p  column-width: 250px; column-width: 15vw; column-width: 10em; >    Скопировать Скопировано Не удалось скопировать   

Можно указать ключевое слово auto . Тогда ширина колонки будет определяться на основании количества колонок, заданного в свойстве column — count .

 p  column-count: 4; column-width: auto;> p  column-count: 4; column-width: auto; >    Скопировать Скопировано Не удалось скопировать   

Как понять

Скопировать ссылку «Как понять» Скопировано

Если мы указываем только column — width , браузер разобьёт контент на столько колонок, сколько поместится в родительский контейнер. При этом:

• Если ширина контейнера кратна ширине колонки, то браузер отобразит столько колонок, сколько поместится, и все они будут иметь заданную длину.
• Если на всю ширину поместится больше одной колонки и останется немного места, куда не влезет ещё одна колонка, все колонки растянутся, чтобы заполнить пустое пространство. При этом итоговая ширина колонки будет больше указанной в column — width .
• Если ширина контейнера меньше ширины колонки, браузер выведет все в одну колонку на всю ширину.

Если мы указываем одновременно column — width и column — count , например column — width : 250px; и column — count : 4; , то браузер думает так:

• Если в элемент поместятся 4 колонки по 250 px, то я отображу ровно 4 колонки, даже если они будут шире 250 px.
• Иначе я отображу столько колонок, сколько получится, но чтобы ширина каждой была не менее 250 px.
• Если ширина всего элемента меньше 250 px, то покажу контент в одну колонку на всю ширину.

Пример

Скопировать ссылку «Пример» Скопировано

В примере ниже можно поменять ширину колонки и посмотреть, как браузер будет рассчитывать общее число колонок.

В следующем примере мы зададим одновременно и column — width , и column — count .

 .text-wrapper  column-count: 4; column-width: 250px;> .text-wrapper  column-count: 4; column-width: 250px; >    Скопировать Скопировано Не удалось скопировать   

Передвигая слайдер, мы меняем размер контейнера. Граница поможет нам визуализировать его размеры. Изменяя ширину контейнера, можно увидеть, как браузер уменьшает число колонок при необходимости.

Источник

Create HTML Table With Different Column Sizes

1. Set Size of HTML Table Columns
2. Set Table Columns Width Using In-Line CSS
3. Set Table Columns Width Using Internal CSS

This article explains modifying the column’s width in HTML and CSS to meet our specifications. Because HTML5 deprecated various tags and properties, we will cover some alternate strategies for attaining the required functionality.

This tutorial will cover how to customize HTML tables using in-line and internal CSS.

Set Size of HTML Table Columns

We frequently need to develop tables with several columns and rows for our web pages. Sometimes we need different widths for each column of the HTML table.

Let’s see how we can create a table having columns with different widths. Before HTML5, the table tag and its associated tags like had a width property that allowed the developers to set the required width of the column.

html>  head>  style>  table, th, td   border:1px solid black;  border-collapse: collapse;  >  style>  head>  body>  table style="width:100%">  tr>  th width="15%">IDth>  th width="70%">Nameth>  th width="15%">Ageth>  tr>  tr>  td>1td>  td>Johntd>  td>25td>  tr>  tr>  td>2td>  td>Jacksontd>  td>40td>  tr>  table>  body>  html> 

The above HTML code uses the width property inside the tag. The table width is set to 100% .

We want the Name column wider than others. So we assign the width 70% to the Name column and 15% to the other two columns each.

Adding up all the figures 70 + 15 + 17 = 100 we get a 100 again.

In HTML5, the width property is deprecated. HTML no longer supports deprecated attributes and tags.

This change in HTML5 encourages developers to use CSS for any styling needed. Let’s see how we can set the table and its column width using CSS.

Set Table Columns Width Using In-Line CSS

Since we cannot use the width property inside the , we can still style our table using the style inside our tags, known as in-line styling. You can give a different width percentage to each column.

Check the code below to understand it clearly.

html>  head>  style>  table, th, td   border:1px solid black;  border-collapse: collapse;  >  style>  head>  body>  table style="width:100%">  tr>  th style="width:10%">IDth>  th style="width:40%">First Nameth>  th style="width:40%">Last Nameth>  th style="width:10%">Ageth>  tr>  tr>  td>1td>  td>Johntd>  td>Doetd>  td>25td>  tr>  tr>  td>2td>  td>Jacksontd>  td>Willtd>  td>40td>  tr>  table>  body>  html> 

In the above code, we assign 10, 40, 40, and 10 widths in percentage to each column. Adding up these figures will make a 100.

Since we set our table width to 100% , we must divide each column in the same range.

Set Table Columns Width Using Internal CSS

We have set the column width in the above code using in-line CSS. But in-line CSS is not recommendable as we must do a lot of rewriting if we want the same functionality on multiple web page regions.

It is a professional practice to keep the HTML and CSS code separate. So let’s see how we can style our table columns using internal CSS.

Internal CSS is written inside the style tag inside the HTML head tag.

Method 1: Use a CSS Class

One of the easiest methods is to assign a class to each tag and then apply styling to them in the style tag. Here’s how.

html>  head>  style>  table  width: 100%  >  table, th, td   border: 1px solid black;  border-collapse: collapse;  >  .name   width: 70%  >  .id, .age   width: 15%  >  style>  head>  body>  table>  tr>  th class="id">IDth>  th class="name">Nameth>  th class="age">Ageth>  tr>  tr>  td>1td>  td>Johntd>  td>25td>  tr>  tr>  td>2td>  td>Jacksontd>  td>40td>  tr>  table>  body>  html> 

Pretty simple. Right? But this method is not efficient in the case of a large number of columns.

Let’s say we have a table with 10 or 20 columns and want different widths for each. Assigning classes to each tag and styling all of them will be a hectic task.

There should be some way of doing this without giving classes to the tags and calling them directly in the style tag. Let’s see this technique in the following method.

Method 2: Use CSS Pseudo-Class Selector

Let’s look at another method to achieve our expected output using a better and more efficient code.

html>  head>  style>  table  width: 100%  >  table, th, td   border: 1px solid black;  border-collapse: collapse;  >  th:nth-child(1)   width: 5%  >  th:nth-child(2)   width: 70%  >  th:nth-child(3)   width: 25%  >  style>  head>  body>  table>  tr>  th>IDth>  th>Nameth>  th>Ageth>  tr>  tr>  td>1td>  td>Johntd>  td>25td>  tr>  tr>  td>2td>  td>Jacksontd>  td>40td>  tr>  table>  body>  html> 

Let’s understand what we did in the code. A CSS selector matches every parent’s nth child element.

The CSS pseudo-class selector :nth-child(n) is used to compare elements based on where they are located in a pair of siblings. The n can be any number or a keyword like, odd or even.

We select the tag in the style tag and call the nth-child selector on it. The nth-chid(1) means it will select the ID column, nth-child(2) will select the Name column, and so on.

This way, you can customize the column’s width without assigning a class to each tag.

One more important point here is that if you specify the width of the ID and Age columns, there is no need to select the width percentage of the Name column as the remaining width will be assigned automatically to it, and it will give us the same result.

html>  head>  style>  table  width: 100%  >  table, th, td   border: 1px solid black;  border-collapse: collapse;  >  th:nth-child(1)   width: 5%  >  th:nth-child(3)   width: 25%  >  style>  head>  body>  table>  tr>  th>IDth>  th>Nameth>  th>Ageth>  tr>  tr>  td>1td>  td>Johntd>  td>25td>  tr>  tr>  td>2td>  td>Jacksontd>  td>40td>  tr>  table>  body>  html> 

Источник

HTML Table Sizes

HTML tables can have different sizes for each column, row or the entire table.

Use the style attribute with the width or height properties to specify the size of a table, row or column.

HTML Table Width

Example

Set the width of the table to 100%:

Note: Using a percentage as the size unit for a width means how wide will this element be compared to its parent element, which in this case is the element.

HTML Table Column Width

Example

Set the width of the first column to 70%:

HTML Table Row Height

To set the height of a specific row, add the style attribute on a table row element:

Example

Set the height of the second row to 200 pixels:

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