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Valeri Tandilashvili's Personal Professional Blog
radio label or checkbox label makes the object checked, but clicking on input[type=text] label makes it active (gives it focus)colspan - the colspan attribute defines the number of columns a cell should span.
rowspan - the rowspan attribute specifies the number of rows a cell should span.table#myTable {
border-collapse:collapse;
}As default, borders are separated (with value: separate), but when the property value is collapse, then borders are collapsed into a single border.container {
box-sizing: border-box;
}Another way to avoid border, padding PX calculations* {
margin: 0px;
padding: 0px;
}.container {
width:1000px;
margin:0px auto;
}<footer> element typically contains:
authorship information
copyright information
contact information
sitemap
back to top links
related documents<h1> - <h6>), also logo or icon
Note: You can have several <header> elements in one HTML document.
However, <header> cannot be placed within a <footer>, <address> or another <header> element.float with divs