how to set font size in html code example

Example 1: how to change font size in html

<body>      
         <h1 style="color:red;font-size:40px;">Heading</h1>      
         <p style="color:blue;font-size:18px;">This is demo text</p>    
      </body>

Example 2: make text bigger html5

p {
  font-size: 15px;
}

p {
  font-size: large;
}

p {
  font-size: 150%;
}

Example 3: html font size

<span style="font-size:20px;"></span>

Example 4: how to increase font size in html

font-size: 25px;

Example 5: html font size

font-size:20px;

"default size is : +-16px;"

Example 6: font tag html

Not Supported in HTML 5 | Support till HTML 4
<font color="red" face="Verdana, Geneva, sans-serif" size="+1">
  Your formatted text goes here
</font>

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Html Example