小编Tom*_*ski的帖子

我需要在某些页面上显示某些内容,在其他页面中它不应该是可见的.我该如何实现？它不起作用

*ngIf="[routerLink]="['/home']"

我一直在我的项目中使用纯css翻转卡,但这个解决方案不合适.点击一个按钮,有人可以在角度2翻转吗？我在angularjs https://codepen.io/Zbeyer/pen/oXQrZg中找到了一个

    <div ng-app="cardFlipper" ng-controller="AppController">    
    <h1>Card Flipping AngularJS</h1>
    <div class="flip-container">
        <div class="flipper" ng-click="flipCard()" ng-class="{'flipToFront':isCardRevealed, 'flipToBack':!isCardRevealed}">
            <div class="back" ng-class="{'face-hidden':hideBackFace}">
            </div>
            <div class="front" ng-class="{'face-hidden':!hideBackFace}">
                <h1>{{currentCard.title | uppercase}}</h1>
                <p ng-if="currentCard.icon">{{currentCard.icon}}</p>
                <br ng-if="currentCard.icon" />
                <img ng-if="currentCard.imageUrl" src="{{currentCard.imageUrl}}" alt="currentCard.imageAlt" />
                <p>{{currentCard.description}}</p>
            </div>
        </div>
    </div>

    <footer>
        <div ng-if="currentCard && currentCard.source">
            <a ng-href="{{currentCard.source}}" target="_blank">Source</a>
        </div>
    </footer>
    <br />
    <br />


</div>
<style>
    /* CARD DIMENSIONS */
@width: 19em;
@height: 27em;
@shadow:1em 1em 2em #111111;
/* MIXINS */
.box-shadow (@string:@shadow) {
    -webkit-box-shadow: @string;
    -moz-box-shadow:    @string;
    box-shadow:         @string; …

我这里有一个工具提示代码。当我在此工具提示上移动鼠标以单击按钮时，它就会消失。怎么让它留下来？我不知道怎么做

a.tooltips {
  position: relative;
}
a.tooltips span {
  position: absolute;
  width: 140px;
  color: #FFFFFF;
  background: #000000;
  min-height: 50px;
  line-height: 30px;
  text-align: center;
  visibility: hidden;
  border-radius: 6px;
}
a.tooltips span:after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -8px;
  width: 0;
  height: 0;
  border-top: 8px solid #000000;
  border-right: 8px solid transparent;
  border-left: 8px solid transparent;
}
a:hover.tooltips span {
  visibility: visible;
  opacity: 0.8;
  bottom: 30px;
  left: 50%;
  margin-left: -76px;
  z-index: 999;
}

 <a class="tooltips" href="#">CSS Tooltips
                  <span>Tooltip <button …