Clearfix

.clearfix {
  overflow: auto;
}

Source: learnlayout.com

Clearfix

/**
 * For modern browsers
 * 1. The space content is one way to avoid an Opera bug when the
 *    contenteditable attribute is included anywhere else in the document.
 *    Otherwise it causes space to appear at the top and bottom of elements
 *    that are clearfixed.
 * 2. The use of `table` rather than `block` is only necessary if using
 *    `:before` to contain the top-margins of child elements.
 */
.cf:before,
.cf:after {
    content: " "; /* 1 */
    display: table; /* 2 */
}

.cf:after {
    clear: both;
}

/**
 * For IE 6/7 only
 * Include this rule to trigger hasLayout and contain floats.
 */
.cf {
    *zoom: 1;
}

Source: nicolasgallagher.com

Similar codes

1 vote273 views2 answers
How to make background more darker with css
CSS
0 vote118 views2 answers
Mask image css
CSS
0 vote132 views1 answer
Color transition time css
CSS
1 vote118 views1 answer
Place many images in a div beautifully
CSS
-1 vote79 views1 answer
Html flex direction
CSS
5 votes139 views2 answers
Css transform transition
CSS
51 votes119 views6 answers
Css first element
CSS
0 vote115 views1 answer
Postion on window top css
CSS
-1 vote137 views1 answer
Line break inside content css
CSS
1 vote114 views1 answer
Remove arrow summary tag css
CSS