基本上,我正在尝试使聊天消息可滚动。但是,到目前为止,该内容似乎不可滚动。当“ chat-messages-wrapper”类是相对的时,它可以很好地滚动,但是我希望聊天消息最初显示在底部,这就是为什么我将其切换为绝对的。
HTML:
<div class="chat-widget">
<div class="header">Social Chat</div>
<div class="chat-messages-wrapper">
<div class="chat-message">
<img class="profile-image" src="../Content/images/facebook-profile.png" /> <span class="header-1">
<img class="logo" src="../Content/images/facebook-logo.png" />
<span class="username">Jens Olsen says:</span>
</span> <span class="header-2">
<button class="reply btn btn-primary btn-xs">Reply</button>
<button class="like btn btn-success btn-xs">Like</button>
<button class="spam btn btn-danger btn-xs">Spam</button>
<span class="date">5:03PM</span>
</span>
<div class="text">This is the chat message. This is the chat message.</div>
</div>
<div class="chat-message">
<img class="profile-image" src="../Content/images/facebook-profile.png" /> <span class="header-1">
<img class="logo" src="../Content/images/twitter-logo.png" />
<span class="username">Jens Olsen says:</span>
</span> <span class="header-2">
<button class="reply btn btn-primary btn-xs">Reply</button>
<button class="like btn btn-success btn-xs">Like</button>
<button class="spam btn btn-danger btn-xs">Spam</button>
<span class="date">5:03PM</span>
</span>
<div class="text">This is the chat message. This is the chat message.</div>
</div>
<div class="chat-message">
<img class="profile-image" src="../Content/images/default-avatar.png" /> <span class="header-1">
<span class="username">Jens Olsen says:</span>
</span> <span class="header-2">
<button class="reply btn btn-primary btn-xs">Reply</button>
<button class="like btn btn-success btn-xs">Like</button>
<button class="spam btn btn-danger btn-xs">Spam</button>
<span class="date">5:03PM</span>
</span>
<div class="text">This is the chat message. This is the chat message.</div>
</div>
</div>
<div class="reply-box">
<input class="reply-text" placeholder="Type your message here..." />
<button class="btn btn-primary reply-button">Send</button>
</div>
</div>
CSS:
.chat-widget {
position: fixed;
right: 5px;
bottom: 5px;
height: 95%;
width: 300px;
background-color: #FFF;
border: solid 3px #3B5998;
overflow: hidden;
}
.chat-widget .header {
text-align: center;
font-size: 18px;
color: #FFF;
background-color: #3B5998;
font-weight: bold;
padding-top: 5px;
padding-bottom: 5px;
}
.header {
position: relative;
z-index: 2;
width: 100%;
}
.chat-messages-wrapper {
position: absolute;
bottom: 40px;
padding-left: 7px;
padding-right: 7px;
height: auto;
overflow-y: auto;
}
.chat-message {
padding-top: 5px;
position: relative;
border-bottom: solid 1px #000;
overflow-y: auto;
}
.chat-message .profile-image {
height: 48px;
width: 48px;
border: solid 1px #000;
margin-right: 5px;
}
.chat-message > .header-1 {
position: absolute;
height: 20px;
}
.chat-message > .header-1 .logo {
width: 75px;
height: 20px;
}
.chat-message > .header-1 .username {
font-weight: bold;
}
.chat-message > .header-2 {
position: absolute;
top: 30px;
height: 20px;
}
.chat-message > .header-2 > .reply {
width: 50px;
}
.chat-message > .header-2 > .like {
width: 50px;
}
.chat-message > .header-2 > .spam {
width: 50px;
}
.chat-message > .header-2 .date {
font-style: italic;
position: relative;
right: 0px;
}
.chat-message .text {
position: relative;
margin: 5px;
}
.chat-message:last-child {
border-bottom: 0px;
}
.reply-box {
overflow-y: auto;
position: absolute;
bottom: 5px;
}
.reply-box .reply-text {
width: 70%;
height: 32px;
}
.reply-box .reply-button {
width: 25%;
}
这是带有完整代码的JSFiddle:
http://jsfiddle.net/5GCE5/1/
最佳答案
为了使overflow-y
工作,您需要为height
元素指定一个显式(最小/最大).chat-messages-wrapper
。
但是,由于盒子的位置是绝对的,因此可以使用top
和bottom
属性来达到相同的效果:
Example Here
.chat-messages-wrapper {
position: absolute;
padding-left: 7px;
padding-right: 7px;
/* height: auto; */
bottom: 40px; /* = height of bottom element */
top: 32px; /* = height of top element */
overflow-y: auto;
}