我正在编写一个在线聊天小部件,并计划将其设计为 Facebook 的。在我的页面中,底部固定了一个栏,每个聊天室都包含在该栏中。虽然栏的高度是固定的,但聊天室不能将其高度扩展到栏之外。
有什么方法可以做到这一点吗?我使用过 z-index、!important 和溢出,但都失败了。
CSS:
#SNbar {
background-color: rgba(203, 203, 203, 0.80);
position: fixed;
bottom: 0;
width: 100%;
height: 25px;
z-index: 900;
overflow: visible;
}
#chatSessions {
position: relative;
bottom: 0;
float:right;
z-index: 901;
}
.chatSession {
/*
position: fixed;
bottom: 0;
*/
padding: 0 10px 0 0;
width: 260px;
float: right;
z-index: 999;
}
.CStitle {
height: 25px;
background-color:#3B5998;
cursor: pointer;
}
.CStitle .titleText{
text-decoration: none;
font-weight:bold;
color: #FFFFFF;
text-decoration: none;
line-height:2em;
}
.CSbody {
background-color: #FFFFFF;
opacity: 1.0;
display: none;
height: 0 !important;
}
.opened{
min-height: 260px !important;
display: block;
}
.CSMsgContainer {
overflow-y: scroll;
height: 210px;
}
HTML:
<div id="SNbar">
<div id="chatSessions">
<div class="chatSession" id="Div4">
<div class="CStitle" onclick="toggleChatSession(this)"><span class="titleText">Title (With Whom)</span> </div>
<div class="CSbody">
<div class="CSMsgContainer">
<div class="message">b: test1</div>
<div class="message">b: this is used to test css</div>
<div class="message">a: This may be help</div>
</div>
</div>
</div>
<div class="chatSession" id="Div8">
<div class="CStitle" onclick="toggleChatSession(this)"><span class="titleText">Title (With Whom)</span></div>
<div class="CSbody">
<div class="CSMsgContainer">
<div id="Div9" class="message">d: hi C!!</div>
<div id="Div10" class="message">c: Hello D~~</div>
<div id="Div11" class="message">
c: We are the second chat session
</div>
</div>
</div>
</div>
</div>
</div>