纯CSS3实现漂亮的input输入框动画样式库(Text input love)

+ label {
display: inline-block;
position: absolute;
transform: translateX(0);
top: 0;
left: 0;
bottom: 0;
padding: 13px 15px;
font-size: 11px;
font-weight: 700;
text-transform: uppercase;
color: #032429;
text-align: left;
text-shadow: 0 1px 0 rgba(255,255,255,.4);
transition: all .3s ease-in-out, color .3s ease-out;
border-top-left-radius: 3px;
border-bottom-left-radius: 3px;
overflow: hidden;

&:after {
content: "";
position: absolute;
top: 0;
right: 100%;
bottom: 0;
width: 100%;
background: #7AB893;
z-index: -1;
transform: translate(0);
transition: all .3s ease-in-out;
border-top-left-radius: 3px;
border-bottom-left-radius: 3px;
}
}
}
.clean-slide:focus,
.clean-slide:active {
color: #377D6A;
text-indent: 0;
background: #fff;
border-top-left-radius: 0;
border-bottom-left-radius: 0;

&::-webkit-input-placeholder {
color: #aaa;
}
+ label {
color: #fff;
text-shadow: 0 1px 0 rgba(19,74,70,.4);
transform: translateX(-100%);

&:after {
transform: translate(100%);
}
}
}
.gate {
display: inline-block;
width: 215px;
padding: 10px 0 10px 15px;
font-family: "Open Sans", sans;
font-weight: 400;
color: #377D6A;
background: #efefef;
border: 0;
border-radius: 3px;
outline: 0;
text-indent: 65px; // Arbitrary.
transition: all .3s ease-in-out;

&::-webkit-input-placeholder {
color: #efefef;
text-indent: 0;
font-weight: 300;
}

+ label {
display: inline-block;
position: absolute;
top: 0;
left: 0;
padding: 10px 15px;
text-shadow: 0 1px 0 rgba(19,74,70,.4);
background: #7AB893;
transition: all .4s ease-in-out;
border-top-left-radius: 3px;
border-bottom-left-radius: 3px;
transform-origin: left bottom;
z-index: 99;

&:before,
&:after {
content: "";
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
border-radius: 3px;
background: #377D6A;
transform-origin: left bottom;
transition: all .4s ease-in-out;
pointer-events: none;
z-index: -1;
}
&:before {
background: rgba(3,36,41,.2);
z-index: -2;
right: 20%;
}
}
}
span:nth-child(2) .gate {
text-indent: 85px;
}
span:nth-child(2) .gate:focus,
span:nth-child(2) .gate:active{
text-indent: 0;
}
.gate:focus,
.gate:active {
color: #377D6A;
text-indent: 0;
background: #fff;
border-top-right-radius: 3px;
border-bottom-right-radius: 3px;

&::-webkit-input-placeholder {
color: #aaa;
}
+ label {
transform: rotate(-66deg);
border-radius: 3px;

&:before {
transform: rotate(10deg);
}
}
}