Form input là biểu mẫu cung cấp cho người dùng để nhập dữ liệu đầu vào,
giúp người dùng của bạn có thể tương tác với với bạn qua đó sẽ nâng cao trải nghiệm của người dùng.

Thường ngày chúng ta đã quen với các kiểu input mặc định, đôi khi nó làm người dùng cảm thấy nhàm chán và đơn điệu !

Bài viết hôm nay tôi muốn chia sẻ đến các bạn về input kết hợp với css để tạo ra những hiệu ứng sáng tạo cho nó bớt nhàm chán…

HTML

<div class="input-main">
    <div class="container">
      <div class="row bg_3">
        <h2><i>Bộ Input Label Effects đẹp !!</i></h2>
        <div class="col-3 input-effect">
        	<input class="effect-1" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-border"></span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-2" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-border"></span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-3" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-border"></span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-4" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-border">
            	<i></i>
            </span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-5" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-border">
            	<i></i>
            </span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-6" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-border">
            	<i></i>
            </span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-7" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-bg"></span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-8" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-bg"></span>
        </div>
        <div class="col-3 input-effect">
        	<input class="effect-9" type="text" placeholder="">
            <label>Họ & Tên</label>
            <span class="focus-bg"></span>
        </div>
      </div>
    </div>
</div>

CSS

@import url("https://fonts.googleapis.com/css?family=Damion|Muli:400,600");
body {
  font-family: "Muli", sans-serif;
}

h2 {
    font-weight: 400;
    color: red;
    font-size: 35px;
    text-align: center;
    position: relative;
}
h2:before {
    position: absolute;
    content: '';
    width: 100%;
    left: 0;
    top: 22px;
    background: red;
    height: 1px;
}
h2 i {
    font-style: normal;
    background: #fff;
    position: relative;
    padding: 10px;
}
:focus{outline: none;}

input[type="text"] {
  font: 15px/24px 'Muli', sans-serif; 
  color: #333; 
  width: 100%; 
  box-sizing: border-box; 
  letter-spacing: 1px;
}

:focus{outline: none;}

.col-3 {
  float: left; 
  width: 27.33%; 
  margin: 40px 3%; 
  position: relative;
  }

input[type="text"] {
  font: 15px/24px "Lato", Arial, sans-serif;
  color: #333; 
  width: 100%; 
  box-sizing: 
  border-box; 
  letter-spacing: 1px;
}

.effect-1, 
.effect-2, 
.effect-3 {
  border: 0; 
  padding: 4px 0; 
  border-bottom: 1px solid #ccc; 
  background-color: transparent;
}

.effect-1 ~ .focus-border {
  position: absolute; 
  bottom: 0; 
  left: 0; 
  width: 0; 
  height: 2px; 
  background-color: #4caf50; 
  transition: 0.4s;
}

.effect-1:focus ~ .focus-border,
.has-content.effect-1 ~ .focus-border {
  width: 100%; 
  transition: 0.4s;
}
.effect-1 ~ label {
  position: absolute; 
  left: 0; 
  width: 100%; 
  top: 9px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-1:focus ~ label, .has-content.effect-1 ~ label {
  top: -16px; 
  font-size: 12px; 
  color: #4caf50; 
  transition: 0.3s;
}

.effect-2 ~ .focus-border {
  position: absolute; 
  bottom: 0; 
  left: 50%; 
  width: 0; 
  height: 2px; 
  background-color: #4caf50; 
  transition: 0.4s;
}

.effect-2:focus ~ .focus-border,
.has-content.effect-2 ~ .focus-border {
  width: 100%; 
  transition: 0.4s; 
  left: 0;
}

.effect-2 ~ label {
  position: absolute; 
  left: 0; 
  width: 100%; 
  top: 9px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-2:focus ~ label, .has-content.effect-2 ~ label {
  top: -16px; 
  font-size: 12px; 
  color: #4caf50; 
  transition: 0.3s;
}

.effect-3 ~ .focus-border {
  position: absolute; 
  bottom: 0; 
  left: 0; 
  width: 100%; 
  height: 2px; 
  z-index: 99;
}
.effect-3 ~ .focus-border:before, 
.effect-3 ~ .focus-border:after {
  content: ""; 
  position: absolute; 
  bottom: 0; 
  left: 0; 
  width: 0; 
  height: 100%; 
  background-color: #4caf50; 
  transition: 0.4s;
}

.effect-3 ~ .focus-border:after {
  left: auto; 
  right: 0;
}

.effect-3:focus ~ .focus-border:before, 
.effect-3:focus ~ .focus-border:after,
.has-content.effect-3 ~ .focus-border:before,
.has-content.effect-3 ~ .focus-border:after {
  width: 50%; 
  transition: 0.4s;
}
.effect-3 ~ label {
  position: absolute; 
  left: 0; 
  width: 100%; 
  top: 9px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-3:focus ~ label, .has-content.effect-3 ~ label {
  top: -16px; 
  font-size: 12px; 
  color: #4caf50; 
  transition: 0.3s;
}

.effect-4,
.effect-5,
.effect-6 {
  border: 1px solid #ccc; 
  padding: 7px 14px; 
  transition: 0.4s; 
  background: transparent;
}

.effect-4 ~ .focus-border:before,
.effect-4 ~ .focus-border:after {
  content: ""; 
  position: 
  absolute; 
  top: -1px; 
  left: 50%; 
  width: 0; 
  height: 2px; 
  background-color: #4caf50; 
  transition: 0.4s;
}

.effect-4 ~ .focus-border:after {
  top: auto; 
  bottom: 0;
}

.effect-4 ~ .focus-border i:before,
.effect-4 ~ .focus-border i:after {
  content: ""; 
  position: absolute; 
  top: 50%; 
  left: 0; 
  width: 2px; 
  height: 0; 
  background-color: #4caf50; 
  transition: 0.6s;
}

.effect-4 ~ .focus-border i:after {
  left: auto; 
  right: 0;
}

.effect-4:focus ~ .focus-border:before,
.effect-4:focus ~ .focus-border:after,
.has-content.effect-4 ~ .focus-border:before,
.has-content.effect-4 ~ .focus-border:after {
  left: 0; 
  width: 100%; 
  transition: 0.4s;
}

.effect-4:focus ~ .focus-border i:before,
.effect-4:focus ~ .focus-border i:after,
.has-content.effect-4 ~ .focus-border i:before,
.has-content.effect-4 ~ .focus-border i:after {
  top: -1px; 
  height: 100%; 
  transition: 0.6s;
}

.effect-4 ~ label {
  position: absolute; 
  left: 14px; 
  width: 100%; 
  top: 10px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-4:focus ~ label, .has-content.effect-4 ~ label {
  top: -18px; 
  left: 0; 
  font-size: 12px; 
  color: #4caf50; 
  transition: 0.3s;
}

.effect-5 ~ .focus-border:before,
.effect-5 ~ .focus-border:after {
  content: ""; 
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 0; 
  height: 2px; 
  background-color: #4caf50; 
  transition: 0.3s;
}

.effect-5 ~ .focus-border:after {
  top: auto; 
  bottom: 0; 
  left: auto; 
  right: 0;
}

.effect-5 ~ .focus-border i:before,
.effect-5 ~ .focus-border i:after {
  content: ""; 
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 2px; 
  height: 0; 
  background-color: #4caf50; 
  transition: 0.4s;
}

.effect-5 ~ .focus-border i:after {
  left: auto; 
  right: 0; 
  top: auto; 
  bottom: 0;
}

.effect-5:focus ~ .focus-border:before,
.effect-5:focus ~ .focus-border:after,
.has-content.effect-5 ~ .focus-border:before,
.has-content.effect-5 ~ .focus-border:after {
  width: 100%; 
  transition: 0.3s;
}

.effect-5:focus ~ .focus-border i:before,
.effect-5:focus ~ .focus-border i:after,
.has-content.effect-5 ~ .focus-border i:before,
.has-content.effect-5 ~ .focus-border i:after {
  height: 100%; 
  transition: 0.4s;
}

.effect-5 ~ label {
  position: absolute; 
  left: 14px; 
  width: 100%; 
  top: 10px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-5:focus ~ label, .has-content.effect-5 ~ label {
  top: -18px; 
  left: 0; 
  font-size: 12px; 
  color: #4caf50; 
  transition: 0.3s;
}

.effect-6 ~ .focus-border:before,
.effect-6 ~ .focus-border:after {
  content: ""; 
  position: absolute; 
  top: 0; 
  right: 0; 
  width: 0; 
  height: 2px; 
  background-color: #4caf50; 
  transition: 0.2s; 
  transition-delay: 0.2s;
}

.effect-6 ~ .focus-border:after {
  top: auto;
  bottom: 0; 
  right: auto; 
  left: 0; 
  transition-delay: 0.6s;
}

.effect-6 ~ .focus-border i:before,
.effect-6 ~ .focus-border i:after {
  content: ""; 
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 2px; 
  height: 0; 
  background-color: #4caf50; 
  transition: 0.2s;
}

.effect-6 ~ .focus-border i:after {
  left: auto; 
  right: 0; 
  top: auto; 
  bottom: 0; 
  transition-delay: 0.4s;
}

.effect-6:focus ~ .focus-border:before,
.effect-6:focus ~ .focus-border:after,
.has-content.effect-6 ~ .focus-border:before,
.has-content.effect-6 ~ .focus-border:after {
  width: 100%; 
  transition: 0.2s; 
  transition-delay: 0.6s;
}

.effect-6:focus ~ .focus-border:after,
.has-content.effect-6 ~ .focus-border:after {
  transition-delay: 0.2s;
}

.effect-6:focus ~ .focus-border i:before,
.effect-6:focus ~ .focus-border i:after,
.has-content.effect-6 ~ .focus-border i:before,
.has-content.effect-6 ~ .focus-border i:after {
  height: 100%; 
  transition: 0.2s;
}

.effect-6:focus ~ .focus-border i:after,
.has-conten.effect-6 ~ .focus-border i:after {
  transition-delay: 0.4s;
}

.effect-6 ~ label {
  position: absolute; 
  left: 14px; 
  width: 100%; 
  top: 10px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-6:focus ~ label, .has-content.effect-6 ~ label {
  top: -18px; 
  left: 0; 
  font-size: 12px; 
  color: #4caf50; 
  transition: 0.3s;
}

.effect-7, 
.effect-8, 
.effect-9 {
  border: 0; 
  padding: 7px 15px; 
  border: 1px solid #ccc; 
  position: relative; 
  background: transparent;
}

.effect-7 ~ .focus-bg {
  position: absolute; 
  left: 0; 
  top: 0;
  width: 0; 
  height: 100%; 
  background-color: transparent; 
  transition: 0.4s; 
  z-index: -1;
}

.effect-7:focus ~ .focus-bg, 
.has-content.effect-7 ~ .focus-bg {
  transition: 0.4s; 
  width: 100%; 
  background-color: #ededed;
}

.effect-7 ~ label {
  position: absolute; 
  left: 14px; 
  width: 100%; 
  top: 10px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-7:focus ~ label, .has-content.effect-7 ~ label {
  top: -18px; 
  left: 0; 
  font-size: 12px; 
  color: #333; 
  transition: 0.3s;
}

.effect-8 ~ .focus-bg:before,
.effect-8 ~ .focus-bg:after {
  content: ""; 
  position: absolute; 
  left: 0; 
  top: 0; 
  width: 0; 
  height: 0; 
  background-color: #ededed; 
  transition: 0.3s; 
  z-index: -1;
}

.effect-8:focus ~ .focus-bg:before,
.has-content.effect-8 ~ .focus-bg:before {
  transition: 0.3s;
  width: 50%; 
  height: 100%;
}

.effect-8 ~ .focus-bg:after {
  left: auto; 
  right: 0; 
  top: auto; 
  bottom: 0;
}

.effect-8:focus ~ .focus-bg:after,
.has-content.effect-8 ~ .focus-bg:after {
  transition: 0.3s;
  width: 50%; 
  height: 100%;
}

.effect-8 ~ label {
  position: absolute; 
  left: 14px; 
  width: 100%; 
  top: 10px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-8:focus ~ label, .has-content.effect-8 ~ label {
  top: -18px; 
  left: 0; 
  font-size: 12px; 
  color: #333; 
  transition: 0.3s;
}

.effect-9 ~ .focus-bg:before,
.effect-9 ~ .focus-bg:after {
  content: ""; 
  position: absolute; 
  left: 50%; 
  top: 50%; 
  width: 0; 
  height: 0; 
  background-color: #ededed; 
  transition: 0.3s; 
  z-index: -1;
}

.effect-9:focus ~ .focus-bg:before,
.has-content.effect-9 ~ .focus-bg:before {
  transition: 0.3s; 
  width: 50%; 
  left: 0; 
  top: 0; 
  height: 100%;
}

.effect-9 ~ .focus-bg:after {
  left: auto; 
  right: 50%; 
  top: auto; 
  bottom: 50%;
}

.effect-9:focus ~ .focus-bg:after,
.has-content.effect-9 ~ .focus-bg:after {
  transition: 0.3s;
  width: 50%; 
  height: 100%; 
  bottom: 0; 
  right: 0;
}
.effect-9 ~ label {
  position: absolute; 
  left: 14px; 
  width: 100%; 
  top: 10px; 
  color: #aaa; 
  transition: 0.3s; 
  z-index: -1; 
  letter-spacing: 0.5px;
}

.effect-9:focus ~ label, .has-content.effect-9 ~ label {
  top: -18px; 
  left: 0; 
  font-size: 12px; 
  color: #333; 
  transition: 0.3s;
}

Link Demo

trên đây là một chia sẻ nhỏ của mình, hy vọng nó sẽ hữu ích với các bạn.
cảm ơn các bạn đã theo dõi bãi viết !!


Nguồn tham khảo

https://codepen.io/search/pens?q=Input Effects&page=1&order=popularity&depth=everything&show_forks=on

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