藤藤每日一练——CSS3制作Twitter信息框

#css3 #gradient #box-shadow #高级篇 #藤藤每日一练

发布于藤藤

12 年前

今天与大家分享一款使用CSS3制作的Twitter信息分享框。在这个DEMO中，使用的CSS3属性还是那么几个，css3的渐变gradient，盒子阴影box-shadow，css3的选择器等，不过在这个案例中两个特色之处，一个是使用了":before"配合gradient制作了内凹圆角效果，类似于chrome浏览器上的tabs效果，这个效果可有点难度（思路来自于Tabs with Round Out Borders）,还有一个亮点就是使用gradient制作了渐变的线条。想一探究竟的同学，看下面的代码吧。

demo download

HTML结构

<div class="box">
  <ul class="menu">
    <li><i>Share it!</i></li>
    <li>WHAT ARE YOU DOING?</li>
    <li>@SPICYEPPER</li>
    <li>DIRECT MESSAGES</li>
  </ul>
  <dl class="list">
    <dt><img alt="" src="data:image/... /></dt>
    <dd>I’m about to jump off a building.</dd>
  </dl>
</div>

CSS代码

body{ 
  background: #273648;
}
.box{ 
  width: 655px; 
  margin: 100px auto 0;
}
.menu{ 
  list-style-type: none; 
  font-size: 0;
}
.menu li{ 
  position: relative;
  display: inline-block; 
  line-height: 30px;
  padding: 0 20px; 
  font-size: 14px; 
}
.menu i{ 
  color: #405b7a;
}
.menu li:not(:first-child){ 
  background:-webkit-linear-gradient(top,#508ed5,#356ba8); 
  background:-moz-linear-gradient(top,#508ed5,#356ba8); 
  background:-o-linear-gradient(top,#508ed5,#356ba8); 
  background:-ms-linear-gradient(top,#508ed5,#356ba8); 
  background:linear-gradient(top,#508ed5,#356ba8); 
  color:#fff;
}
.menu li:last-child{ 
  border-radius:0 10px 0 0;
}
.menu li:last-child:after,
.menu li:last-child:before{ 
  position: absolute; 
  top: 0;
  display: block; 
  content: ""; 
  height: 30px; 
  width: 1px;
}
.menu li:last-child:after{ 
  background: -webkit-linear-gradient(top,#356ca9 0%, #356ca9 50%, rgba(56,109,107,0) 90%);
  background: -moz-linear-gradient(top,#356ca9 0%, #356ca9 50%, rgba(56,109,107,0) 90%);
  background: -o-linear-gradient(top,#356ca9 0%, #356ca9 50%, rgba(56,109,107,0) 90%);
  background: -ms-linear-gradient(top,#356ca9 0%, #356ca9 50%, rgba(56,109,107,0) 90%);
  background: linear-gradient(top,#356ca9 0%, #356ca9 50%, rgba(56,109,107,0) 90%);
  left: 0;
}
.menu li:last-child:before{ 
  background: -webkit-linear-gradient(top,#9bc1ec 0%, #9bc1ec 50%, rgba(56,109,107,0) 90%);
  background: -moz-linear-gradient(top,#9bc1ec 0%, #9bc1ec 50%, rgba(56,109,107,0) 90%);
  background: -o-linear-gradient(top,#9bc1ec 0%, #9bc1ec 50%, rgba(56,109,107,0) 90%);
  background: -ms-linear-gradient(top,#9bc1ec 0%, #9bc1ec 50%, rgba(56,109,107,0) 90%);
  background: linear-gradient(top,#9bc1ec 0%, #9bc1ec 50%, rgba(56,109,107,0) 90%);
  left: 1px;
}
.menu li:nth-of-type(3){ 
  margin-left: -10px; 
  padding-left:30px;
}
.menu li:nth-of-type(2){ 
  z-index: 99;
  top: 1px;
  border-radius:10px 10px 0 0; 
  background: -webkit-linear-gradient(top,#90d0ff,#7ab4f3); 
  background: -moz-linear-gradient(top,#90d0ff,#7ab4f3); 
  background: -o-linear-gradient(top,#90d0ff,#7ab4f3); 
  background: -ms-linear-gradient(top,#90d0ff,#7ab4f3); 
  background: linear-gradient(top,#90d0ff,#7ab4f3); 
  text-shadow:0 1px 0 #999;
  padding-top: 1px;
  box-shadow:inset 0 1px 0 #b2deff,1px -1px 1px rgba(23,34,47,.4),-1px -1px 1px rgba(23,34,47,1);
}
.menu li:nth-of-type(2):after,
.menu li:nth-of-type(2):before{
  position: absolute;
  display: block;
  content: "";z-index: 99;
}
.menu li:nth-of-type(2):after{
  bottom: 1px; 
  left: -9px;
  width:20px;
  height:20px;
  background: -webkit-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: -moz-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: -o-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: -ms-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background-position:bottom right;
  background-size: 50% 50%;
  background-repeat: no-repeat;
  -webkit-transform:rotate(90deg);
  -moz-transform:rotate(90deg);
  -o-transform:rotate(90deg);
  -ms-transform:rotate(90deg);
  transform:rotate(90deg);
}
.menu li:nth-of-type(2):before{
  bottom: 1px; 
  right: -10px;
  width:20px;
  height:20px;
  background: -webkit-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: -moz-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: -o-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: -ms-radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background: radial-gradient(0 100%, circle, rgba(23,34,47,0) 60%,rgba(23,34,47,.4) 65%,#9fc8f7 75%, #7ab4f3 80%);
  background-position:top left;
  background-size: 50% 50%;
  background-repeat: no-repeat;
  -webkit-transform:rotate(180deg);
  -moz-transform:rotate(180deg);
  -o-transform:rotate(180deg);
  -ms-transform:rotate(180deg);
  transform:rotate(180deg);
}
.list{
  position: relative; 
  width: 625px; 
  height: 60px; 
  margin:0;
  padding:15px;
  border-radius: 10px;
  box-shadow:0 -1px 0 #305783, 0 0 3px rgba(23,34,47,1); 
  background: -webkit-linear-gradient(top,#7ab4f3,#4f80b5 34px,#4f80b5 54px,#305783); 
  background: -moz-linear-gradient(top,#7ab4f3,#4f80b5 34px,#4f80b5 54px,#305783); 
  background: -o-linear-gradient(top,#7ab4f3,#4f80b5 34px,#4f80b5 54px,#305783); 
  background: -ms-linear-gradient(top,#7ab4f3,#4f80b5 34px,#4f80b5 54px,#305783); 
  background: linear-gradient(top,#7ab4f3,#4f80b5 34px,#4f80b5 54px,#305783); 
}
.list dt{ 
  position: absolute; 
  height: 60px; 
  width: 60px; 
  box-shadow: 0 0 0 1px #697c90,0 0 0 2px #2c435b,0 3px 0 #719ed0; 
  background: -webkit-linear-gradient(top,#85b9f5,#4c749c);
  background: -moz-linear-gradient(top,#85b9f5,#4c749c);
  background: -o-linear-gradient(top,#85b9f5,#4c749c);
  background: -ms-linear-gradient(top,#85b9f5,#4c749c);
  background: linear-gradient(top,#85b9f5,#4c749c);
}
.list dt img{ 
  width: 60px; 
  height: 60px;
}
.list dd{ 
  position: relative; 
  color:#fff;
  font-size: 16px;
  font-weight:bold;
  margin-left: 75px;
  padding-left:30px; 
  line-height: 60px;
  text-shadow:0 0 0 1px #999;
  border-radius:10px;
  box-shadow:inset 0 0 8px #10161d,0 1px #719ed0;
  background: -webkit-linear-gradient(top,#243546,#111920);  
  background: -moz-linear-gradient(top,#243546,#111920);  
  background: -o-linear-gradient(top,#243546,#111920);  
  background: -ms-linear-gradient(top,#243546,#111920);  
  background: linear-gradient(top,#243546,#111920);  
}
.list dd:before,
.list dd:after{ 
  position: absolute; 
  display: block;  
  content: ""; 
  width: 0; 
  height: 0;
}
.list dd:before{
  top:50%;
  left:0;
  margin-top: -14px;
  border:10px solid #fff;
  border-color: transparent transparent transparent #9fc8f7;
}
.list dd:after{
  top:50%;
  left:0;
  margin-top: -13px;
  border:10px solid #fff;
  border-color: transparent transparent transparent #4f80b5;
}

demo download

如需转载，烦请注明出处：https://www.fedev.cn/demo/twitter-message-box.html

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