如何为Firefox的此悬停功能添加占位符。
.hover {
width: 49px;
height: 20px;
margin-top: 200px;
position: absolute;
top: -200px;
left: 48%;
right: 50%;
opacity: .9;
z-index: 3;
}
<div class="hover"> <img src="http://static.tumblr.com/e2rgcy1/ma6od7pby/dropdown-button.png" /></div>
答案 0 :(得分:0)
<style>
.tooltip {
position: relative;
display: inline-block;
}
.tooltip .tooltiptext {
visibility: hidden;
width:100px;
background-color: black;
color: #fff;
text-align: center;
border-radius: 6px;
padding: 5px 0;
/* Position the tooltip */
position: absolute;
z-index: 1;
}
.tooltip:hover .tooltiptext {
visibility: visible;
}
<!DOCTYPE html>
<html>
<body style="text-align:center;">
<div class="tooltip"><img src="http://static.tumblr.com/e2rgcy1/ma6od7pby/dropdown-button.png" />
<span class="tooltiptext">Facebook</span>
</div>
</body>
</html>