how to add fonts in html code example

Example 1: import font css

@font-face {
  font-family: "Open Sans";
  src: url("/fonts/OpenSans-Regular-webfont.woff2") format("woff2"),
       url("/fonts/OpenSans-Regular-webfont.woff") format("woff");
}

Example 2: how to link fonts css

@font-face {
  font-family: myFirstFont;
  src: url(sansation_light.woff);
}

div {
  font-family: myFirstFont;
}
/*Name the font-family and link the font file in the @font-face rule*/

Example 3: css font face

@font-face {
  // Defining what the font will be called
  font-family: thisSpecialFont;
  // Linking to the font file
  src: url(linkToFontFile.woff);
}
body {
  font-family: thisSpecialFont;
}

Example 4: how to add font otf format in html

/*default version*/
@font-face {
	font-family: 'lovelyFont';
	src: url('fonts/lovely_font.eot'); 
	src: 
		local('Lovely Font'),
		local('Lovely-Font'),
		url('fonts/lovely_font.otf') 
		format('opentype');
}
/*bold version*/
@font-face {
	font-family: 'lovelyFont';
	src: url('fonts/lovely_font_bold.eot'); 
	src: 
		local('Lovely Font Bold'),
		local('Lovely-Font-Bold'),
		url('fonts/lovely_font_bold.otf') 
		format('opentype');
	font-weight: bold;
}
/*container element*/
div { font-family: 'lovelyFont', sans-serif; }
/*span elements inside the container div*/
span { font-weight: bold; }

Example 5: how to link fonts css

@import url(//fonts.googleapis.com/css?family=Open+Sans);
/*When not hosting on my own server use the @import rule which is Google Fonts Versionn and hosted on their server*/