How to make an interactive calendar in html

Behzad Ahmad

Overview

We’ll create our animated calendar in four steps:

1. Add HTML
2. Add CSS
3. Add JavaScript
4. Combine HTML, CSS, and JavaScript

Add HTML

First, we have to write the HTML to create the calendar.

Code explanation

• Line 5: We create a div for the calendar so that the calendar can be inside that div.

• Lines 6 and 7: We create a div in which the month and the year of the calendar can be shown.

• Line 18: We create a div in which we can see the dates.

• Lines 19 and 27: We create a div and write the names of the days in it.

• Line 28: We create a div so that it can display the complete number of days.

• Line 31: We show the list of the months.

• Line 33: We call the JavaScript.

Add CSS

Code explanation

• Lines 1 to 24: We set the colors and the font size for the calendar.

• Lines 26 and 39: We set the properties for the div of the calendar.

• Lines 40 to 173: We set the properties of the calendar. For example, the format of the dates and also the styling and animation of the dates.

• Lines 175 to 183: We set the styling for the months.

• Lines 185 to 202: We set the properties to display years in the calendar.

• Lines 204 to 218: We set the footer properties and the scroll bar properties.

• Lines 220 to 259: We set the properties for the format of the list of the months.

Add JavaScript

Code explanation

• Line 3: We write the names of the months.

• Lines 5 to 11: We check for the leap year and set the days of February accordingly.

• Line 13: We generate the calendar.

• Lines 15 to 20: We set the days of the months.

• Lines 22 to 49: We get the first day of the month to set the calendar.

• Lines 51 to 68: We get the months list and select the month from it.

• Lines 70 to 85: We set the date and the month.

Combine HTML, CSS, and JavaScript

CONTRIBUTOR

Learn how to create a Calendar with CSS.

How To Create a Calendar Layout

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• ❯
• August
  2021

• Mo
• Tu
• We
• Th
• Fr
• Sa
• Su

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
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• 17
• 18
• 19
• 20
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• 31

Try it Yourself »

Step 1) Add HTML:

Example

 
• Mo

 
• Tu

 
• We

 
• Th

 
• Fr

 
• Sa

 
• Su

 
• 1

 
• 2

 
• 3

 
• 4

 
• 5

 
• 6

 
• 7

 
• 8

 
• 9

 
• 10

 
• 11

  ...etc

Step 2) Add CSS:

Example

ul {list-style-type: none;}
body {font-family: Verdana, sans-serif;}

/* Month header */
.month {
  padding: 70px 25px;
  width: 100%;
  background: #1abc9c;
  text-align: center;
}

/* Month list */
.month ul {
  margin: 0;
  padding: 0;
}

.month ul li {
  color: white;
  font-size: 20px;
  text-transform: uppercase;
  letter-spacing: 3px;
}

/* Previous button inside month header */
.month .prev {
  float: left;
  padding-top: 10px;
}

/* Next button */
.month .next {
  float: right;
  padding-top: 10px;
}

/* Weekdays (Mon-Sun) */
.weekdays {
  margin: 0;
  padding: 10px 0;
  background-color:#ddd;
}

.weekdays li {
  display: inline-block;
  width: 13.6%;
  color: #666;
  text-align: center;
}

/* Days (1-31) */
.days {
  padding: 10px 0;
  background: #eee;
  margin: 0;
}

.days li {
  list-style-type: none;
  display: inline-block;
  width: 13.6%;
  text-align: center;
  margin-bottom: 5px;
  font-size:12px;
  color: #777;
}

/* Highlight the "current" day */
.days li .active {
  padding: 5px;
  background: #1abc9c;
  color: white!important
}

Try it Yourself »

How do I create a dynamic calendar in HTML?