如何在第一行文本末尾添加箭头?我希望它在崩溃时指向下方,并在展开时指向它。如下图所示。感谢您的帮助,谢谢!在第一行文本末尾切换箭头
$(".expander").click(function() {
if ($(this).hasClass("expander")) {
$(this).removeClass("expander");
}
else {
$(this).addClass("expander");
}
});
.expander {
height: 1em;
overflow: hidden;
cursor: pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="expander">
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.
</div>
代码从here
仅供参考,你可以简化'click'处理程序,以单行:'$(本).toggleClass( “扩展”)' –