Table of Contents
Various ways of setting line height
Notes on row height settings
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css line height setting

May 21, 2023 am 11:22 AM

CSS line height setting refers to the style setting for setting the height and line spacing of text lines in text boxes, blocks and other elements. Line height refers to the height of a text line, that is, the distance between the bottom of the previous line of text and the top of the next line of text; line spacing refers to the spacing between lines of text. Reasonable line height settings can improve the readability of articles and allow users to read more comfortably.

Various ways of setting line height

  1. Using the line-height attribute

In CSS, we can use the line-height attribute to set text lines height and line spacing. This attribute value can be used to set a fixed value, or you can use units such as percentage and em.

For example:

p {
  line-height: 1.5; /* 设置行高为1.5个文本字符的高度 */
}
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  1. Inherit the line-height attribute of the parent element

You can also set the line-height attribute of the parent element to a fixed value or Percentage value to implement row height inheritance. This ensures that the line height between the child element and the parent element remains consistent.

For example:

body {
  line-height: 1.5; /* 设置全局行高为1.5个文本字符的高度 */
}

div {
  /* 继承父元素的行高 */
}
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  1. Use rem units

rem is a unit calculated relative to the font size of the root element, so rem units can be fine Adapt to devices of different screen sizes.

For example:

p {
  line-height: 1.5rem; /* 设置行高为1.5倍的字体大小 */
}
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  1. Using the calc() function

The calc() function calculates a given mathematical expression and applies the result to in the attribute value.

For example:

p {
  line-height: calc(2em + 10px); /* 设置行高为2倍字体大小加上10像素 */
}
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Notes on row height settings

  1. The row height value should not be too large or too small. If it is too large, the lines will be too separated, affecting the reading experience; if it is too small, the text will be superimposed and difficult to read.
  2. The line height value should be appropriate to the font size. Typically, you can set the line height to about 1.2 times the font size.
  3. The value of line height needs to be adjusted according to reading conditions and text layout. For example, on a mobile phone screen, the line height should not be too large, otherwise it will waste screen space; in articles with pictures and text, the line height can be increased appropriately to improve the reading experience.

In addition to the above setting methods and precautions, the style setting of line height can also be adjusted in combination with other style attributes, such as line spacing, word spacing, alignment, etc. Only through rational thinking and practice can we achieve the optimal line height setting, improve the readability of the article and provide a good reading experience.

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