演示：https://wow.techbrood.com/fiddle/9960

直接上代码

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
<link href='https://fonts.useso.com/css?family=Droid+Serif:400,700' rel='stylesheet' type='text/css'>
<button class="button  search">Search</button>
<br/>
<br/>
<button class="button  arrow">Read more</button>
<br/>
<br/>
<button class="button  email">[email protected]</button>
<br/>
<br/>
<button class="button  phone">tel: 1234 567 890</button>

CSS部分

body {
    background: #303036;
    text-align: center;
    text-rendering: auto;
    font-size: 17px;
    line-height: 1.6em;
    height: 100vh;
    overflow: hidden;
    padding: 18%;
}
* {
    box-sizing: border-box;
}
.button {
    display: inline-block;
    font-family: "Montserrat", "Trebuchet MS", Helvetica, sans-serif;
    -webkit-font-smoothing: antialiased;
    position: relative;
    padding: 0.8em 1.4em;
    padding-right: 4.7em;
    background: #009ed8;
    border: none;
    color: white;
    transition: 0.2s;
}
.button:before,
.button:after {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    padding-top: inherit;
    padding-bottom: inherit;
    width: 2.8em;
    content: "\00a0";
    font-family: 'FontAwesome', sans-serif;
    font-size: 1.2em;
    text-align: center;
    transition: 0.2s;
}
.button:before {
    background: rgba(0, 0, 0, 0.1);
}
.button:hover {
    background: #0079a5;
}
.button:active,
.button:focus {
    background: #002e3f;
    outline: none;
}
.button {
    min-width: 15em;
}
.arrow {
    background: #fe5f55;
}
.arrow:hover {
    background: #fe2f22;
}
.arrow:active,
.arrow:focus {
    background: #b90c01;
}
.arrow:after {
    content: "\F054";
}
.arrow:hover:after {
    -webkit-animation: bounceright 0.3s alternate ease infinite;
    animation: bounceright 0.3s alternate ease infinite;
}
.phone {
    background: #139675;
}
.phone:hover {
    background: #0d6952;
}
.phone:active,
.phone:focus {
    background: #083b2e;
}
.phone:after {
    content: "\F095";
}
.phone:hover:after {
    -webkit-animation: wiggle 0.05s alternate ease infinite;
    animation: wiggle 0.05s alternate ease infinite;
}
.email {
    background: #c673b3;
}
.email:hover {
    background: #b74f9f;
}
.email:active,
.email:focus {
    background: #963d82;
}
.email:after {
    content: "\F0E0";
}
.email:hover:after {
    -webkit-animation: none;
    -webkit-transform: skew(-20deg);
    animation: none;
    transform: skew(-20deg);
    text-indent: 0.1em;
}
.search:after {
    content: "\f002";
}
.search:hover:after {
    -webkit-animation: none;
    -webkit-transform: scale(1.4);
    animation: none;
    transform: scale(1.4);
}
@-webkit-keyframes bounceright {
    from {
        -webkit-transform: translateX(0);
    }
    to {
        -webkit-transform: translateX(3px);
    }
}
@-webkit-keyframes wiggle {
    from {
        -webkit-transform: rotate(0deg);
    }
    to {
        -webkit-transform: rotate(30deg);
    }
}
@keyframes bounceright {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(3px);
    }
}
@keyframes wiggle {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(30deg);
    }
}