05 2019 档案
摘要:var startX = 0, startY = 0, x = 0, y = 0, minDragRang = 50; var targetContainer = angular.element(document.getElementsByClassName('target-container-class')); var targetHeader = angular.element(docume...
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摘要:.radio{ position: relative; border: 1px solid #999; border-radius: 50%; width: 12px; height: 12px; background-color: #eee; } .radio.active:after { content: ""; display: table; position: absolute; to...
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摘要:一、介绍 css3为了区分伪类和伪元素,伪元素采用双冒号写法。 常见伪类——:hover,:link,:active,:target,:not(),:focus。 常见伪元素——::first-letter,::first-line,::before,::after,::selection。 ::b
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