6种炫酷的CSS3按钮边框动画特效_html/css_WEB-ITnose

<button class="draw">draw</button>       

button {  background: none;  border: 0;  box-sizing: border-box;  box-shadow: inset 0 0 0 2px #f45e61;  color: #f45e61;  font-size: inherit;  font-weight: 700;  margin: 1em;  padding: 1em 2em;  text-align: center;  text-transform: capitalize;  position: relative;  vertical-align: middle;}button::before, button::after {  box-sizing: border-box;  content: '';  position: absolute;  width: 100%;  height: 100%;}