Divcss5小编给大家介绍一款input框的代码,实现如下：

表单

.input-field,

.input-field *{

-webkit-box-sizing: border-box;

box-sizing:border-box;

}

.input-field {

position: relative;

width: 200px;

margin: 20px 50px;

}

.input-field input {

background-color: transparent;

border: none;

border-radius: 0;

height: 35px;

width: 100%;

padding: 0;

box-shadow: none;

outline: none;

-webkit-transition: all 0.3s;

transition: all 0.3s;

}

.input-field input+span {

position: absolute;

top: 100%;

left: 0;

display: inline-block;

max-width: 100%;

z-index: 0;

width: 100%;

height: 1px;

border-bottom: 1px solid #d9d9d9;

}

.input-field span:after {

content: "";

position: absolute;

bottom: 0;

left: 0;

width: 100%;

height: 2px;

background: #2196f3;

-webkit-transform: scale(0);

transform: scale(0);

-webkit-transition: all .2s ease-out;

transition: all .2s ease-out;

}

.input-field input:focus+span:after {

-webkit-transform: scale(1);

transform: scale(1);

}

.input-field.input-field-icon i{

position:absolute;

right:0;

top:50%;

padding:0 5px;

font-size:1.5em;

-webkit-transform: translate(0, -50%);

transform: translate(0, -50%);

}

.input-field.input-field-icon input{

padding-right:30px;

}

.input-field.success input+span{

border-color: #b5dfb7;

}

.input-field.warning input+span{

border-color: #ffd699;

}

.input-field.error input+span{

border-color: #fccbc7;

}

.input-field.success span:after {

background:#4caf50;

}

.input-field.warning span:after{

background:#ffc107;

}

.input-field.error span:after{

background:#f44336;

}

.input-field.input-field-icon.success i{

color: #4caf50;

}

.input-field.input-field-icon.warning i{

color: #ffc107;

}

.input-field.input-field-icon.error i{

color: #f44336;

}

.input-field.linear span:after {

background:-webkit-linear-gradient(left, #8C0044 20%, #00FFFF 50%, #7700FF 80%);

}