📅  最后修改于: 2022-03-11 14:47:35.147000             🧑  作者: Mango
body {
font-family: "Helvetica Neue";
font-size: 20px;
font-weight: normal;
}
section {
max-width: 450px;
margin: 50px auto;
}
section div {
max-width: 255px;
word-wrap: break-word;
margin-bottom: 20px;
line-height: 24px;
}
.clear {
clear: both;
}
.from-me {
position: relative;
padding: 10px 20px;
color: white;
background: #0B93F6;
border-radius: 25px;
float: right;
}
.from-me:before {
content: "";
position: absolute;
z-index: -1;
bottom: -2px;
right: -7px;
height: 20px;
border-right: 20px solid #0B93F6;
border-bottom-left-radius: 16px 14px;
-webkit-transform: translate(0, -2px);
}
.from-me:after {
content: "";
position: absolute;
z-index: 1;
bottom: -2px;
right: -56px;
width: 26px;
height: 20px;
background: white;
border-bottom-left-radius: 10px;
-webkit-transform: translate(-30px, -2px);
}
.from-them {
position: relative;
padding: 10px 20px;
background: #E5E5EA;
border-radius: 25px;
color: black;
float: left;
}
.from-them:before {
content: "";
position: absolute;
z-index: 2;
bottom: -2px;
left: -7px;
height: 20px;
border-left: 20px solid #E5E5EA;
border-bottom-right-radius: 16px 14px;
-webkit-transform: translate(0, -2px);
}
.from-them:after {
content: "";
position: absolute;
z-index: 3;
bottom: -2px;
left: 4px;
width: 26px;
height: 20px;
background: white;
border-bottom-right-radius: 10px;
-webkit-transform: translate(-30px, -2px);
}