Besides using special non-proteinacous fluorescent dyes to label cellular compartments it is also possible to stain the area of interest with the help of proteins with preferences for distinct locations in the cell. These proteins can be linked to a fluorescent dye and visualized in the fluorescent microscope.
The HTML <body> tag is used for declaring the main content section of the HTML document. The <body> tag is placed after the document's head (i.e. between the </head> and the </html> tags). The basic tag is written like this <body></body>, with the document's content inserted between the opening and closing tags. On any normal-sized HTML document, you'll usually see the opening tag (<body>) near the top of the document and the closing tag (</body>) near the bottom.
HTML attribute. An HTML attribute is a modifier of an HTML element type. An attribute either modifies the default functionality of an element type or provides functionality to certain element types unable to function correctly without them. In HTML syntax, an attribute is added to an HTML start tag. Several basic attributes types have been recognized, including: (1) required attributes, needed by a particular element type for that element type to function correctly; (2) optional attributes, used to modify the default functionality of an element type; (3) standard attributes, supported by a large number of element types; and (4) event attributes, used to cause element types to specify scripts to be run under specific circumstances.