How to create a form with its place holders animating? - css

Question

I am trying to create a form similar to SEND GRID
I am not sure what technology they have used. Google gave me some information on MaterialsCSS. Is it good to use?
Can any one guide me on this?

Answer 1

Pure CSS3 Will help you a lot !
.input {
position: relative;
z-index: 1;
display: inline-block;
margin: 1em;
max-width: 350px;
width: calc(100% - 2em);
vertical-align: top;
}
.input__field {
position: relative;
display: block;
float: right;
padding: 0.8em;
width: 60%;
border: none;
border-radius: 0;
background: #f0f0f0;
color: #aaa;
font-weight: 400;
font-family: "Avenir Next", "Helvetica Neue", Helvetica, Arial, sans-serif;
-webkit-appearance: none;
/* for box shadows to show on iOS */
}
.input__field:focus {
outline: none;
}
.input__label {
display: inline-block;
float: right;
padding: 0 1em;
width: 40%;
color: #696969;
font-weight: bold;
font-size: 70.25%;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.input__label-content {
position: relative;
display: block;
padding: 1.6em 0;
width: 100%;
}
.graphic {
position: absolute;
top: 0;
left: 0;
fill: none;
}
.icon {
color: #ddd;
font-size: 150%;
}
/* Nariko */
.input--nariko {
overflow: hidden;
padding-top: 2em;
}
.input__field--nariko {
width: 100%;
background: transparent;
opacity: 0;
padding: 0.35em;
z-index: 100;
color: #f18292;
}
.input__label--nariko {
width: 100%;
bottom: 0;
position: absolute;
pointer-events: none;
text-align: left;
color: #8E9191;
padding: 0 0.5em;
}
.input__label--nariko::before {
content: '';
position: absolute;
width: 100%;
height: 4em;
top: 100%;
left: 0;
background: #fff;
border-top: 4px solid #9B9F9F;
-webkit-transform: translate3d(0, -3px, 0);
transform: translate3d(0, -3px, 0);
-webkit-transition: -webkit-transform 0.4s;
transition: transform 0.4s;
-webkit-transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1);
transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1);
}
.input__label-content--nariko {
padding: 0.5em 0;
-webkit-transform-origin: 0% 100%;
transform-origin: 0% 100%;
-webkit-transition: -webkit-transform 0.4s, color 0.4s;
transition: transform 0.4s, color 0.4s;
-webkit-transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1);
transition-timing-function: cubic-bezier(0.7, 0, 0.3, 1);
}
.input__field--nariko:focus,
.input--filled .input__field--nariko {
cursor: text;
opacity: 1;
-webkit-transition: opacity 0s 0.4s;
transition: opacity 0s 0.4s;
}
.input__field--nariko:focus + .input__label--nariko::before,
.input--filled .input__label--nariko::before {
-webkit-transition-delay: 0.05s;
transition-delay: 0.05s;
-webkit-transform: translate3d(0, -3.3em, 0);
transform: translate3d(0, -3.3em, 0);
}
.input__field--nariko:focus + .input__label--nariko .input__label-content--nariko,
.input--filled .input__label-content--nariko {
color: #6B6E6E;
-webkit-transform: translate3d(0, -3.3em, 0) scale3d(0.81, 0.81, 1);
transform: translate3d(0, -3.3em, 0) scale3d(0.81, 0.81, 1);
}
<section class="content bgcolor-7">
<h2>Input Custom Design</h2>
<span class="input input--nariko">
<input class="input__field input__field--nariko" type="text" id="input-20" />
<label class="input__label input__label--nariko" for="input-20">
<span class="input__label-content input__label-content--nariko">Username</span>
</label>
</span>
<span class="input input--nariko">
<input class="input__field input__field--nariko" type="text" id="input-21" />
<label class="input__label input__label--nariko" for="input-21">
<span class="input__label-content input__label-content--nariko">Website</span>
</label>
</span>
<span class="input input--nariko">
<input class="input__field input__field--nariko" type="text" id="input-22" />
<label class="input__label input__label--nariko" for="input-22">
<span class="input__label-content input__label-content--nariko">Invitation Code</span>
</label>
</span>
</section>
Just HTML5, CSS3 and Modern browser Try This & edit as you can......