使用JavaScript怎么实现一个留言板增删功能
这篇文章给大家介绍使用JavaScript怎么实现一个留言板增删功能，内容非常详细，感兴趣的小伙伴们可以参考借鉴，希望对大家能有所帮助。
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Document
* {
margin: 0;
padding: 0;
list-style: none;
}
.cle:after {
height: 0;
clear: both;
visibility: hidden;
display: none;
content: "";
}
.bbslist {
width: 400px;
margin: 10px auto;
border-radius: 5px;
background: #A6A6A6;
border: 1px solid #a6a6a6;
}
.bbslist>ul {
margin: 8px 10px 10px 10px;
display: block;
clear: both;
text-align: center;
box-shadow: 3px 3px 25px #A6A6A6;
}
.bbslist>ul>li {
background: #f4f4f4;
margin: 10px 0;
line-height: 30px;
height: 30px;
border-radius: 5px;
text-align: center;
box-shadow: 3px 3px 17px #A6A6A6;
padding: 0 5px;
font-size: 12px;
border: 1px solid #a6a6a6;
position: relative;
transition: all 0.5s;
animation: liBg 0.3s;
overflow: hidden;
}
@keyframes liBg {
from {
background: #442222;
opacity: 0;
left: -20px;
height: 0;
}
to {
background: #f4f4f4;
opacity: 1;
left: 0;
height: 30px;
}
}
.mesDiv {
width: 400px;
background: #eee;
height: 130px;
border: 1px solid #a6a6a6;
margin: 20px auto;
border-radius: 5px;
box-shadow: 3px 3px 17px #A6A6A6;
animation: msgHeight 0.5s;
overflow: hidden;
}
@keyframes msgHeight {
from {
height: 0;
margin-top: 50px;
opacity: 0;
}
to {
height: 130px;
margin-top: 20px;
opacity: 1;
}
}
.inputSty {
width: 90%;
height: 30px;
display: block;
color: #666;
border: 1px solid #ddd;
padding-left: 5px;
line-height: 30px;
font-size: 12px;
clear: both;
margin: 10px auto;
border-radius: 5px;
}
.btnSty {
width: 30%;
height: 25px;
margin: 0 auto;
display: block;
cursor: pointer;
transition: all 0.2s;
border-radius: 5px;
box-shadow: 3px 3px 10px #A6A6A6;
}
.btnSty:hover {
width: 20%;
height: 30px;
border-radius: 5px;
box-shadow: 3px 3px 10px #A6A6A6;
}
.userSty {
width: 25%;
height: 25px;
margin: 8px 18px 3px 18px;
border-radius: 5px;
box-shadow: 3px 3px 10px #A6A6A6;
}
.dd {
width: 135px;
height: 10px;
position: relative;
top: -10px;
font-size: 8px;
float: right;
clear: both;
}
.delbtn{
width: 35px;
height: 22px;
border-radius: 5px;
position: relative;
top: 5px;
right: -4px;
float: right;
z-index: 2;
color: red;
/* box-shadow: 2px 2px 3px #A6A6A6; */
}
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