By adapting the solution from this answer, you can reset the style for an element and all its descendants.
.immune, .immune * {
animation : none !important;
animation-delay : 0 !important;
animation-direction : normal !important;
animation-duration : 0 !important;
animation-fill-mode : none !important;
animation-iteration-count : 1 !important;
animation-name : none !important;
animation-play-state : running !important;
animation-timing-function : ease !important;
backface-visibility : visible !important;
background : 0 !important;
background-attachment : scroll !important;
background-clip : border-box !important;
background-color : transparent !important;
background-image : none !important;
background-origin : padding-box !important;
background-position : 0 0 !important;
background-position-x : 0 !important;
background-position-y : 0 !important;
background-repeat : repeat !important;
background-size : auto auto !important;
border : 0 !important;
border-style : none !important;
border-width : medium !important;
border-color : inherit !important;
border-bottom : 0 !important;
border-bottom-color : inherit !important;
border-bottom-left-radius : 0 !important;
border-bottom-right-radius : 0 !important;
border-bottom-style : none !important;
border-bottom-width : medium !important;
border-collapse : separate !important;
border-image : none !important;
border-left : 0 !important;
border-left-color : inherit !important;
border-left-style : none !important;
border-left-width : medium !important;
border-radius : 0 !important;
border-right : 0 !important;
border-right-color : inherit !important;
border-right-style : none !important;
border-right-width : medium !important;
border-spacing : 0 !important;
border-top : 0 !important;
border-top-color : inherit !important;
border-top-left-radius : 0 !important;
border-top-right-radius : 0 !important;
border-top-style : none !important;
border-top-width : medium !important;
bottom : auto !important;
box-shadow : none !important;
box-sizing : content-box !important;
caption-side : top !important;
clear : none !important;
clip : auto !important;
color : inherit !important;
columns : auto !important;
column-count : auto !important;
column-fill : balance !important;
column-gap : normal !important;
column-rule : medium none currentColor !important;
column-rule-color : currentColor !important;
column-rule-style : none !important;
column-rule-width : none !important;
column-span : 1 !important;
column-width : auto !important;
content : normal !important;
counter-increment : none !important;
counter-reset : none !important;
cursor : auto !important;
direction : ltr !important;
display : inline !important;
empty-cells : show !important;
float : none !important;
font : normal !important;
font-family : inherit !important;
font-size : medium !important;
font-style : normal !important;
font-variant : normal !important;
font-weight : normal !important;
height : auto !important;
hyphens : none !important;
left : auto !important;
letter-spacing : normal !important;
line-height : normal !important;
list-style : none !important;
list-style-image : none !important;
list-style-position : outside !important;
list-style-type : disc !important;
margin : 0 !important;
margin-bottom : 0 !important;
margin-left : 0 !important;
margin-right : 0 !important;
margin-top : 0 !important;
max-height : none !important;
max-width : none !important;
min-height : 0 !important;
min-width : 0 !important;
opacity : 1 !important;
orphans : 0 !important;
outline : 0 !important;
outline-color : invert !important;
outline-style : none !important;
outline-width : medium !important;
overflow : visible !important;
overflow-x : visible !important;
overflow-y : visible !important;
padding : 0 !important;
padding-bottom : 0 !important;
padding-left : 0 !important;
padding-right : 0 !important;
padding-top : 0 !important;
page-break-after : auto !important;
page-break-before : auto !important;
page-break-inside : auto !important;
perspective : none !important;
perspective-origin : 50% 50% !important;
position : static !important;
/* May need to alter quotes for different locales (e.g fr) */
quotes : '\201C' '\201D' '\2018' '\2019' !important;
right : auto !important;
tab-size : 8 !important;
table-layout : auto !important;
text-align : inherit !important;
text-align-last : auto !important;
text-decoration : none !important;
text-decoration-color : inherit !important;
text-decoration-line : none !important;
text-decoration-style : solid !important;
text-indent : 0 !important;
text-shadow : none !important;
text-transform : none !important;
top : auto !important;
transform : none !important;
transform-style : flat !important;
transition : none !important;
transition-delay : 0s !important;
transition-duration : 0s !important;
transition-property : none !important;
transition-timing-function : ease !important;
unicode-bidi : normal !important;
vertical-align : baseline !important;
visibility : visible !important;
white-space : normal !important;
widows : 0 !important;
width : auto !important;
word-spacing : normal !important;
z-index : auto !important;
}
Note 1: Buttons and form controls will lose browser-specific styling
Note 2: In some cases, it will not work. Even though adding !important
to a rule gives it a higher priority, another rule (in the original css) might have an even higher priority (for example: another rule with !important
)
In that case, you will need to create a specific override
/* original css */
#header {
border: 1px solid black !important;
}
/* css reset (from above) */
.immune, .immune * {
border: none !important;
}
/* override */
#header.immune, .immune #header {
border: none !important;
}
Hello
instead of using !importants and "immune divs" (that don't exist and is a huge hack) – turtlepick Apr 30 '14 at 03:06