原生html中modal,js 原生实现的modal弹出框架

```

模态框实现

h4 {

margin-left: 20px;

}

p {

text-align: center;

}

.btn {

width: 100px;

height: 35px;

border-radius: 5px;

font-size: 16px;

color: white;

background-color: cornflowerblue;

}

.btn:hover,

.btn:focus {

background-color: #95b4ed;

}

.modal {

display: none;

width: 100%;

height: 100%;

position: fixed;

left: 0;

top: 0;

z-index: 1000;

background-color: rgba(0, 0, 0, 0.5);

}

.modal-content {

display: flex;

flex-flow: column nowrap;

justify-content: space-between;

width: 50%;

max-width: 700px;

height: 40%;

max-height: 500px;

margin: 100px auto;

border-radius: 10px;

background-color: #fff;

-webkit-animation: zoom 0.6s;

animation: zoom 0.6s;

resize: both;

overflow: auto;

}

@-webkit-keyframes zoom {

from {

-webkit-transform: scale(0)

}

to {

-webkit-transform: scale(1)

}

}

@keyframes zoom {

from {

transform: scale(0)

}

to {

transform: scale(1)

}

}

.modal-header {

box-sizing: border-box;

border-bottom: 1px solid #ccc;

display: flex;

justify-content: space-between;

align-items: center;

}

.close {

color: #b7b7b7;

font-size: 30px;

font-weight: bold;

margin-right: 20px;

transition: all 0.3s;

}

.close:hover,

.close:focus {

color: #95b4ed;

text-decoration: none;

cursor: pointer;

}

.modal-body {

padding: 10px;

font-size: 16px;

box-sizing: border-box;

}

.modal-footer {

box-sizing: border-box;

border-top: 1px solid #ccc;

display: flex;

padding: 15px;

justify-content: flex-end;

align-items: center;

}

.modal-footer button {

width: 60px;

height: 35px;

padding: 5px;

box-sizing: border-box;

margin-right: 10px;

font-size: 16px;

color: white;

border-radius: 5px;

background-color: cornflowerblue;

}

.modal-footer button:hover,

.modal-footer button:focus {

background-color: #95b4ed;

cursor: pointer;

}

@media only screen and (max-width: 700px) {

.modal-content {

width: 80%;

}

}

模态框展示

模态框标题

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var btn = document.getElementById('showModel');

var close = document.getElementsByClassName('close')[0];

var cancel = document.getElementById('cancel');

var modal = document.getElementById('modal');

btn.addEventListener('click', function () { modal.style.display = "block"; });

close.addEventListener('click', function () { modal.style.display = "none"; });

cancel.addEventListener('click', function () { modal.style.display = "none"; });